1. Note these General and essential Points - - -
It is essential to give question number and sub question number in the margin provided.
Next question ( NOT SUBQUESTION) must start on next page.
Draw relevant diagrams even if not asked.
All figures must be drawn by pencil. They must be labeled and sufficiently large.
SAFE HANDS

2. Note these Points - - -
While solving numerical problems first write given data convert it into S.I. units. Write the formula needed and substitute the values. Do calculations using log or direct in a box call it as rough work ( it should be neat and good looking)
The answer of numerical problem must be with units and should be in a box.
While deriving any expression remember that your next step is outcome of previous step.
If you want to cancel some part don’t cancel it as
“Parallel axis theorem : If Iz is MI about an axis perpendicular
it should be as—

3. Points you need to remember
Diagrams must be labeled and arrow must be shown for current and vectors. The key must be introduced and polarities of A, V, source, must be shown.
Show polarity of cells
Arrow on wire indicating direction of current
Remember to show variable resistance (rheostat), key, Galvanometer, source of e.m.f. with polarity ( take proper care when used in potentiometer)
All most every definition must be with example.
If question is about comparison or assumptions then just give the list of points.

4. Points to remember
While doing numerical problems of meter bridge or Whetstone's network better have figure.
When ac is applied direction of current is not to be showed
Remember to indicate transformer, primary, secondary, load resistance, “e” input ac voltage, Vo output voltage, if full wave rectifier then center tap, direction of current in load resistance connected to output.
Once you note down data in SI units think about formula needed and use it .

5. PAPER “Physics” BOARD PATERN IS
Single Paper of 3 hours with total marks 70 =35 ( section I ) + 35 (Section II) Passing will be at 18 ( Useful for NEET students) QU1 : ( 7 marks) one will be numerical QU2 :( 12 marks) 2 marks each solve any 6 /8 (at least 4 numerical problems) QU 3:( 9 marks) 3 marks each solve any 3 from 4 (at least 1 numerical problems) QU 4: (7 marks) 7 marks each solve any 1 from 2 (subpart with at least 2 or 3 numerical problems)

6. IN SHORT IN PHYSICS PAPER WILL CONSIST OF
12 MCQ based on theory 2 MCQ based on numerical in all 14 MCQ
16 short answer questions of 2 marks each with 8 numerical from which you need to solve 12 means 12 short answer questions
Two 3 marks and 1 four mark question with less choice 2 from QU 3 and 1 from QU 4. with 3 numerical of 3+ 4 or 3 marks. Means in Paper of Physics 25 marks will be numerical

7. Total Marks 4/5 Question may be of 1,2,3 or 4 marks
SAFE HANDS
Circular Motion
Total Marks 4/5
Question may be of
1,2,3 or 4 marks

8. Circular Motion Questions for 2 marks
Define uniform circular motion. Why it is called as periodic?
Define angular displacement, radius vector
Define angular acceleration, Centripetal force
Obtain relation between velocity and angular velocity of a particle in UCM
Obtain relation between linear acceleration and angular acceleration of a particle in circular motion

9. What is banking of road?Is the safe speed limit is same for all vehicles? why?
Derive expression for maximum speed where the curved road is not banked
Explain the need of banking of road
Distinguish between centripetal and centrifugal force
Explain why centrifugal force is called as pseudo force
Draw neat diagram of force acting on vehicle moving along banked road
What is conical pendulum?

10. Define angular velocity, angular acceleration and give their directions
Define angular velocity, angular acceleration and give their SI units
Define UCM and obtain relation between linear and angular velocity
Explain centripetal and centrifugal force
Derive an expression for centripetal acceleration
Define angle of banking and obtain expression for the same.
Write Newton’s equations for rotational motion.
Obtain expression for time period of conical pendulum.

11. Important formulae of CM

12. Total marks 3/5 Questions may be of 1,2,3,4 marks
SAFE HANDS
Gravitation
Total marks 3/5
Questions may be of
1,2,3,4 marks

13. Questions for 2 marks
State Newton’s law of gravitation, give SI unit and dimensions of constant of gravitation
Obtain relation between gravitation constant and gravitational acceleration at certain height from surface of earth
Obtain relation between gravitational acceleration at certain height from surface of earth and on surface of earth

14. Explain why two stage rocket is necessary to launch a satellite
State the conditions under which satellite will move in parabolic and elliptic path
Derive the expression for critical velocity of a satellite.
Derive an expression for period of a satellite revolving round the earth
Explain communication satellite and give its two applications

15. Define escape velocity and binding velocity
Obtain expression for binding energy of a body at height h above the surface of earth when it is at rest
Obtain expression for escape velocity of the satellite on surface of earth
Explain weightlessness
State Kepler’s laws of motion
Draw and explain the graph of ‘g’ and distance from centre of earth.

16. For 4 marks
Define critical velocity and obtain expression for it and state the factors on which it depends
Obtain expression for critical velocity of a satellite at height h and obtain expression for period
Define binding energy and obtain expression for the same
at rest on earth surface
Orbiting at height h above the surface

17. Important formulae of gravitation

18. Possible questions are of 1,2,3 or 4 marks
Rotational Motion
Total marks 4/6
Possible questions are of 1,2,3 or 4 marks
SAFE HANDS

19. 2 marks Define Rigid body and Moment of inertia
Radius of gyration and moment of inertia
Explain physical significance of MI
Compare MI of solid sphere and hollow sphere of same mass and of same material
Show that total KE of a sphere of mass m rolling along horizontal plane with velocity v is 7mv2/10 and similar
Deduce an expression of KE of rolling body

20. Prove that torque equals product of angular velocity and moment of inertia
State principle of
parallel axis theorem
Principle of perpendicular axis theorem
Show that MI of thin uniform rod about an axis passing through a point midway between center and edge, perpendicular to it is 7ML2/48 ( and similar)
Using parallel axis theorem and MI of axis of length L, mass m about an axis perpendicular to rod is ML2/12 obtain MI about an axis perpendicular to rod and through edge

21. State and prove law of conservation of angular momentum
MI of solid sphere about its diameter is 2MR2/5 with usual meaning then determine MI about tangent
Assuming MI of a uniform disc about an axis passing through its center and perpendicular to its plane,
obtain an expression for its MI about any diameter
show that MI about tangent is 5MR2/4
Show that MI about axis passing through edge and perpendicular to plane of disc is 3MR2/2
State the principle of conservation of angular momentum and explain it with suitable example
State and prove law of conservation of angular momentum

22. 3 marks each
Define radius of gyration and give its physical significance
State and prove principle of parallel axis about moment of inertia
State and prove principle of perpendicular axis about moment of inertia
Derive expression for MI of a rod of mass M and length L about an axis passing through its center and perpendicular to it, hence obtain MI about an axis perpendicular to it and passing through one of its edge

23. Important formulae of MI

24. Total marks 5/7 Possible questions may be of 1,2,3 or 4 marks
Oscillation
Total marks 5/7
Possible questions may be of ,2,3 or 4 marks
SAFE HANDS

25. Periodic motion, Linear SHM Phase of a particle performing SHM
2 marks question
Define
Periodic motion, Linear SHM
Phase of a particle performing SHM
Amplitude, Period for particle in SHM
Angular SHM, force constant
Phase and epoch
Second’s pendulum, simple pendulum
State the expression for KE and write values for KE at mean position and extreme position

26. Show that PE of a particle is directly proportional to the square of its displacement from mean position
Assuming expression for KE and PE of a particle performing SHM obtain expression for TE and deduce conclusion from it.
Define second’s pendulum and show that length of seconds pendulum is constant at given place
Deduce an expression for period of a particle performing SHM in terms of force constant
Draw diagram showing displacement and velocity against time

27. Obtain expression of velocity using differential equation of SHM
Obtain expression for period of simple pendulum
State differential equation for angular SHM give one example for the same.
Represent KE and PE against displacement in separate graphs with proper labeling
Write down at what distance from mean position the KE =PE and at what distance velocity will be half of maximum

28. 3 marks question
Show that linear SHM can be considered as the projection of UCM on any diameter
Represent graphically the displacement, velocity and acceleration against time for a particle performing linear SHM when it starts from extreme position
Assuming general equation of displacement in SHM obtain expression for velocity and acceleration
Obtain expressions for KE,PE and hence show that TE is constant for linear SHM
Discuss analytically, the composition of two SHMs of same period and parallel to each other

29. 4 marks question
State the differential equation of SHM and obtain expression for displacement, velocity and acceleration
Obtain expression for period of simple pendulum, hence calculate the length of second’s pendulum
Obtain expression for the period of a magnet vibrating in a uniform magnetic induction
If x1 = a1sin(t+1) and x2=a2sin(t + 2) obtain an expression for resultant amplitude hence obtain resultant amplitude when phase differ by 0o and by 90o.

30. Important formulae of Oscillation

31. Important formulae of Oscillation

32. Total Marks 4/6 Possible questions are of 1,2,3 or 4 marks
SAFE HANDS
Elasticity
Total Marks 4/6
Possible questions are of
1,2,3 or 4 marks

33. Questions of 2 marks
What is elasticity? How can you differentiate between elastic body and plastic body?
Define deforming force and perfectly elastic body
Define stress and strain, write their units
Define stress, strain and their dimension
What is shearing stress? State its units and dimension
The graph of stress against strain
is as shown in adjoining figure,
state what points E,Y and C
represents, define any one of them

34. Define bulk modulus & derive expression for it.
What is elastic limit? What happens beyond elastic limit?
State Hooks law of elasticity and define modulus of elasticity
Explain why only solids posses all the three constants of elasticity
Deduce an expression of Young’s modulus of material of a long uniform wire
Assuming Hook’s law show that Young’s modulus of the material of a wire is the stress required to double the length of wire

35. Define modulus of rigidity and derive its necessary formula
Prove that deforming force is directly proportional to the change in the volume of a wire in the case of Young’s modulus
Define Yield point, Breaking point
Explain why two identical wires of the same material used in method for the determination of Y

36. Questions for 3 marks
18. Define strain and explain its different types
What is Poisson’s ratio? Why it does not have any unit?
Give the expression of sag of horizontal beam and explain terms used in it.
How will you relate ductility and brittleness with stress strain graph. Give examples of both types.
Define thermal stress and relate it with coefficient of linear expansion and Young’s modulus.

37. Questions for 4 marks
Derive expression for work done per unit volume in stretching a wire
With the graph explain behavior of a wire under increasing load
Prove that strain energy per unit volume equals (stress x strain)/2

38. Important formulae

39. Total marks 4/6 Question may be of 1,2,3 or 4 marks
Surface Tension
Total marks 4/6
Question may be of
1,2,3 or 4 marks

40. Questions of 2 marks
Define Range of molecular attraction, sphere of influence
Define Angle of contact, surface tension
Define Cohesive force, Adhesive force
Obtain dimension of surface tension and state its units
State four characteristics of angle of contact
Give applications of surface tension.
Give applications of capillary action.
State Laplace’s law of spherical membrane.

41. 3 marks questions
Explain formation of concave and convex surface on the basis of molecular theory
Explain why angle of contact is acute for water – glass interface and is obtuse for mercury –glass pair
Explain the term angle of contact, What is the nature of an angle of contact for a liquid which partially wets and does not wet the solid
State expression for rise of liquid in capillary tube and explain the factors affecting the rise of liquid

42. 4 marks questions
Explain surface tension on the basis of molecular theory
What is surface energy? Establish relation between surface tension and surface energy
Using molecular theory explain why the free surface of some liquids in contact with a solid is not horizontal
What is capillarity? How it is used to determine surface tension of a liquid which wets the glass.
State Laplace’s law of spherical membrane and prove it.

43. Important formulae of properties of liquid

44. Total marks 3/5 Questions may be of 1,2,3 or 4 marks
Wave Motion
Total marks 3/5
Questions may be of ,2,3 or 4 marks

45. Questions of 2 marks Wave is doubly periodic phenomenon, explain
State any four characteristics of simple harmonic progressive wave
Define Longitudinal, Transverse wave
State any four characteristics of longitudinal wave
State any four characteristics of Transverse wave
Distinguish between Transverse and Longitudinal waves
State and explain principle of superposition of sound waves with the help of constructive and destructive interference

46. What are the conditions for beat formation
What are beats? State two applications of beats
What is Doppler's effect? State any two applications
Draw neat labeled diagram of Quincke's tube.

47. Questions for 3 marks
Obtain equation of simple harmonic progressive wave in positive direction of X axis
Explain the phenomenon of reflection of sound waves from denser medium and from rare medium
Explain the phenomenon of reflection of transverse waves from denser medium and from rare medium
State and explain principle of superposition of waves
Explain method of determination of wavelength of sound using Quincke’s tube.

48. Questions for 4 marks
01. Obtain expression for progressive wave and write it in two different form
02. Using analytical treatment show that the beat frequency is equal to difference between frequencies of interfering waves.
03. Describe construction of “ Quincke’s tube” and how it works?
04. Explain Doppler's effect in sound. Give mathematical expression for frequency and its application.

49. Important formulae for wave mechanicsAR

50. Total marks 5/7 Questions may be of 1,2,3 or 4 marks
Stationary Waves
Total marks 5/7
Questions may be of ,2,3 or 4 marks

51. 2 mark questions What are stationary waves and why they are called so?
State any four characteristics of stationary waves
What are the conditions of stationary waves?
What are nodes and antinodes?
State the difference between harmonics and overtone
State expression for frequency of vibrating string hence show that n is inversely proportional to radius and root of density of wire

52. Explain resonance
Explain forced and free vibrations
Describe construction of Sonometer
What is end correction? How to estimate end correction?
State any two laws of vibrating string
Draw Diagrams showing parallel and perpendicular position
Draw Fundamental mode of vibrating air columns in open and close pipe
Draw First and second harmonics of string

53. Distinguish between Harmonics and overtone
Distinguish between stationary and progressive waves
Distinguish between free and damped vibrations
State the formula for fundamental frequency of string explain terms used
State the formula for fundamental frequency of vibrating air column in open pipe and explain terms used
State the formula for fundamental frequency of vibrating air column in pipe closed at one end and explain terms used

54. 3 marks questions
Using analytical method derive expression for resultant displacement of two progressive waves traveling in opposite directions. Why it is called as stationary wave.
Explain vibration of stretched string fixed at two ends.
State the formula for fundamental frequency and explain laws of vibrating string

55. Explain the working of flute. Explain working of harmonium.
3 marks questions
Explain why all harmonics are present in air vibrating in a pipe open at both ends and not in pipe close at one end.
Explain the terms forced vibration and Resonance and give two applications of resonance.
Explain the working of flute.
Explain working of harmonium.

56. Questions of 4 marks
Describe Melde’s experiment to determine frequency of tuning fork in perpendicular position.
Describe Melde’s experiment to determine frequency of tuning fork in parallel position.
Explain how velocity of sound can be measured using resonance tube

57. Important formulae for Stationary waves

58. Kinetic theory of gases and Radiation
Total marks 4/6
Possible questions may be of
1,2,3 or 4 marks

59. Questions for 2 marks Explain the terms free path, mean free path
Explain cause of pressure on close container
Define mean square velocity, root mean square velocity
Deduce Boyle’s law on the basis of KTG
Assuming the expression for pressure exerted by the gas show that kinetic energy per mole of gas is 3RT/2N
Explain why gases have two specific heats
Explain Cp greater than Cv

60. Questions for 2 marks
Assuming the expression for pressure exerted by the gas show that P.V=2(TKE) / 3
Define ideal gas.
Show that KE per unit volume of a gas is directly proportional to atmospheric pressure.
Define molar specific heats of gas
Define principle specific heats of gas
Define internal latent heat.

61. 2 mark questions Define coefficient of absorption and reflectance.
Define coefficient of absorption and of transmission.
Obtain relation between a, r and e.
Define coefficient of transmission. If t = 0 then what type of body it is? give example.
Explain construction and working of perfectly black body.
What do you mean by black body. State the use of conical projection of an artificial black body.
Define emissive power and emissivity of body.

62. 2 mark questions
Define emissive power and list the factors on which it depends.
State Kirchhoff's law of radiation and Stefan’s law of radiation.
State Stefan's law for radiation. Write unit of Stefan's constant.
State Wien's law of radiation. Write unit of “b”
State the limitations of Newton’s law of cooling.
State Prevost’s theory of heat exchange.
Write two observations of energy diagram of black body radiations.

63. Questions for 3 marks
State any two assumptions of Kinetic theory of gases and show that RMS velocity is directly proportional to square root of absolute temperature.
State any two assumptions of KTG and obtain Boyle’s law.
Define principle specific heats and explain why cp > cv
What are degree of freedom and state law of equipartition of energy.
State Dalton’s law and Charle’s law

64. 3 marks questions
Define coefficient of absorption, emission and transmission and obtain relation between them.
What do you mean by perfectly black body? Can it be realized in practice? How will you construct perfectly black body?
Give theoretical proof of equality of emissive and absorptive power.
State Stefan’s law, Newton’s law and Kirchhoff’s law.
Obtain Newton’s law using Stefan’s law.

65. ( Rigid) Diatomic gas is 7/5 (Non rigid) Diatomic gas is 9/7
Questions for 3 marks
Using specific heat capacities show that adiabatic constant of ( any one )
monatomic gas is 5/3
( Rigid) Diatomic gas is 7/5
(Non rigid) Diatomic gas is 9/7
Polyatomic gas (4+f)/(3+f)
State zeroth, first and second law of thermodynamics.

66. Questions for 4 marks Write any eight assumptions of KTG.
On the basis of KTG obtain expression of pressure exerted by enclosed gas.
Draw and explain the curve between energy and wavelength of radiations by a black body at different temperatures.
State Kirchhoff’s law and give its experimental explanation.
State & explain Prevost’s theory of heat.
Derive Newton’s law of cooling using Stefan’s law.

67. Expression for terms used in KTG
Useful relations for problems:
( if pressure is constant)
(it temperature is constant)
(if gas is same)
( if gas and temperature is different )

70. Important formulae for Radiation
a + r + t = 1

71. Total marks 3/4 Possible questions are of 1,2, 3 or 4 marks
Wave theory of Light
Total marks 3/4
Possible questions are of 1,2, 3 or 4 marks

72. State any four assumptions of Newton’s theory of light.
Wave theory of Light
2 marks question
State any four assumptions of Newton’s theory of light.
State demerits of corpuscular theory .
State demerits of wave theory of light
Define wave front and wave normal
Draw neat labeled ray diagram of reflection of light from plane mirror using wave theory

73. Define plane polarized light. State meaning of polarizer and analyzer.
Wave theory of Light
2 marks question
Define plane polarized light. State meaning of polarizer and analyzer.
Define polarizing angle. State relation between polarizing angle and refractive index.
Explain the role of Canada balsam in Nicole prism.

74. Give two applications of Doppler's effect in light.
Wave theory of Light
2 marks question
State uses of Polaroid.
Draw neat labeled ray diagram of refraction of light from plane mirror using wave theory
Give two applications of Doppler's effect in light.
Give four uses of Polaroid.

75. 3 marks question Wave theory of Light
Give brief account of Huygens' theory of light
Give demerits of Newton’s theory of light.
Explain the roll of Newton, Huygens and Maxwell in theory of light.
State Brewster’s law and show that at tan of polarizing angle equals refractive index.

76. 4 marks question Wave theory of Light
State Huygen’s principle and explain construction of spherical wave front
State Huygen’s principle and explain construction of plane wave front
Prove the law of reflection on the basis of wave theory of light
Prove the law of refraction on the basis of wave theory of light
Explain construction and working of Nicole Prism

77. Formulae needed with standard notations

78. Interference and Diffraction
Total marks 4/6
Possible questions are of 1,2,3 or 4 marks

79. Interference and Diffraction
2 marks questions:
State the conditions to get constructive and destructive interference of light
State conditions for obtaining a steady interference pattern.
Explain two classes of diffraction
Explain why the sources must be narrow and very close to each other
Explain need of coherent sources for interference

80. Draw neat diagrams of biprism experiment
Draw neat diagrams of conjugate positions to obtain distance between sources.
Distinguish between double slit and biprism experiment
Distinguish between interference and diffraction.
State resolving power of microscope explain terms used in expression
State resolving power of telescope explain terms used in expression
Explain the terms “ limit of resolution” and “ resolving power”

81. 3 marks questions:
What is interference of light and state four conditions for steady interference pattern
State the principle of superposition and four conditions for steady interference pattern
Using analytical method obtain expression for path difference
Assuming the expression of path difference obtain the expression of band width.

82. Explain the concept of interference and state conditions for constructive and destructive interference.
State Rayleigh criteria for resolution.
State expression for resolving power of microscope and explain how to increase resolving power of microscope.
State the conditions for maxima and minima of diffraction pattern.

83. 4 marks questions:
Describe Young’s experiment
Derive expression for optical path difference hence obtain the expression of band width
Describe the biprism experiment to find wavelength of light.
Derive the formula for determination of distance between virtual images, in Fresnel’s method.

84. 4 marks questions:
Derive formula for nth dark and bright band by diffraction.
Explain diffraction by single slit and prove that width of central maxima is double that of others.
Obtain expression for condition of constructive and destructive interference analytically.
Obtain expression for band width in interference.

85. Important formulae

86. Total marks 3/4 Possible questions are of 1,2, 3 or 4 marks
Electrostatics
Total marks 3/4
Possible questions are of 1,2, 3 or 4 marks

87. Electrostatics 2 marks questions:
Define electric line of force & two properties
Define line of induction and state two of its properties.
Define tube of force & tube of induction
State expression for mechanical energy ans explain terms used.
Define capacity of capacitor & its SI unit
Give four properties of electric lines
State types of capacitors and draw their schematic diagrams.

88. Obtain Resultant capacitance of parallel combination of capacitors
Obtain Resultant capacitance of series combination of capacitors
State principle of Van De Graff's generator
Using Gauss theorem obtain expression for electric intensity just outside the charged body / sphere / cylinder
Using expression for mechanical force per unit area obtain expression for energy density
Explain concept of condenser
Explain how capacitor can be used to check freshness of fish.

89. 3 marks questions
Obtain expression for mechanical force per unit area of closed charged condenser and the total mechanical force acting on conductor
Show that mechanical force per unit area of closed charged condenser is directly proportional to 2
Show that mechanical force per unit area of closed charged condenser is directly proportional to E2
Obtain expression for energy stored in parallel plate condenser

90. Obtain expression for energy per unit volume of (dielectric medium) closed charged condenser placed in a medium.
What is condenser and explain its different types.
Obtain expression for electric field due to uniformly charged infinite plate.

91. 4 marks questions State and prove Gauss theorem
Obtain expression of mechanical force per unit area and energy per unit volume.
Obtain expression for capacity of parallel plate capacity and ways to increase the capacity
Explain working and construction of Van-De-Graaff generator.

92. Important expressions with standard symbols
Flux density
 = E cos ds

93. Important expressions with standard symbols
C1 Q1V1
C2 Q2V2
- ve if  & +ve if series
Charge will flow from higher potential to lower potential till potential becomes V

94. Total marks 3/4 Possible questions are 1,2,3 or 4 marks
Current electricity
Total marks 3/4
Possible questions are 1,2,3 or 4 marks

95. 2 mark questions Current electricity State and explain ohm’s law
Define specific resistance, its unit and expression
State Kirchhoff’s laws
Explain principle of potentiometer
Distinguish between potentiometer and voltmeter

96. What are precautions while performing experiment with potentiometer
Draw neat diagram of meter bridge.
State any two sources of errors in meter bridge experiment and explain how to overcome it?
State the advantages of potentiometer over voltmeter.
Draw circuit diagram of Kevin’s method to measure resistance of galvanometer.

97. 3 marks questions
Explain the errors and ways to minimize them in Whetstone meter bridge
Explain method to determine internal resistance of a cell.
Explain Kelvin's Method to determine resistance of a galvanometer.
What is potentiometer.

98. 4 marks questions
Explain working and construction of Whetstone's network
Explain construction of Whetstone's meter bridge and how it can be used to determine unknown resistance
State principle of potentiometer and explain the method to compare emf’s of two cells when used separately
State principle of potentiometer and explain the method to compare emf’s of two cells by sum and difference method
How to use potentiometer for determination of internal resistance of a cell

99. Formulae needed for current electricity

100. Magnetic effect of electric current
Total marks 3/4
Questions may be of 1,2,3 or 4 marks

101. Magnetic effect of electric current
2 marks
Explain the need of cylindrical concave pole pieces of magnet for MCG
State Ampere's law
Define Solenoid and Torrid
Explain why soft iron core is needed for MCG
Define sensitivity of MCG and state factors affecting sensitivity.
Why ammeter must have low resistance
Why voltmeter must have high resistance

102. Define accuracy of MCG & how to increase it
How to convert MCG into an ammeter
How to convert MCG into voltmeter
Distinguish between ammeter and voltmeter.
Draw labeled diagram of suspended type of galvanometer.
Write principle of cyclotron.
What are limitations of cyclotron.

103. 3 marks
What is necessity of radial field in MCG and explain how MCG can be converted into an ammeter
Derive an expression for deflecting torque acting on current caring coil and write the conditions for maximum and minimum torque.
Obtain expression for frequency of cyclotron
State principle of cyclotron and obtain expression for KE of a positively charged particle.

104. 4 marks
State the principle of MCG and describe its construction with neat diagram
State the principle of MCG and show that deflection produced in it is directly proportional to current passing through it
Describe the construction and working of cyclotron and derive the necessary formula
What are the functions of high resistance in voltmeter and low resistance in ammeter.

105. Important formulae MEEC

106. Important formulae MEEC

107. Total marks 3/4 Possible questions are 1,2,3 or 4 marks
Magnetism
Total marks 3/4
Possible questions are 1,2,3 or 4 marks

108. Magnetism 2/3 marks questions State the expression for
magnetic induction at axial point along with direction
Magnetic induction at centre of current carrying loop.
State the expression for magnitude of magnetic moment associated with orbiting electron.
What is Gyro magnetic ratio, state its unit ( Mo[=IA = evr/2] : Lo [=mvr ])
Define magnetization and magnetic intensity.

109. Define Magnetic intensity, state its unit / dimension.
Explain the term magnetic susceptibility.
Give relation between value of magnetic susceptibility with diamagnetic, paramagnetic and ferromagnetic substances.
Distinguish between Diamagnetic and Paramagnetic substances

110. Distinguish between Diamagnetic and Ferromagnetic substances
State properties of diamagnetic substances
State properties of paramagnetic substances
State properties of ferromagnetic substances
What is curie temperature? What is effect of curie temperature on ferromagnetic substance?
Explain how magnetic dipole moment is analogous to electrostatic dipole moment and  to 1/

111. Important formulae

112. Electromagnetic induction
Total marks 4/6
Questions may be of 2,3 or 4 marks

113. Electromagnetic induction
2 marks
State and explain Lenz’s law in EMI
What are eddy currents? Give any two applications
Explain concept of self inductance
State and define SI unit of self inductance
Explain the concept of mutual induction

114. State and explain Fleming’s right hand rule
Define rms value of ac current. Give relation between peak value and rms value of ac current.
State and explain Fleming’s right hand rule
Discuss the flow of current when ac emf is applied to resistance
Derive expression for power decapitated in an ac circuit containing resistance only
Draw neat labeled diagram of
Series and parallel resonant circuit
Graph indicating current and frequency in LCR series circuit
LCR parallel circuit

115. 3 marks
Explain the terms inductive reactance, capacitive reactance and power factor
Explain application of ac to pure inductance
Explain application of ac to pure conductance
Explain resonant frequency in LCR circuit and the graph of current and frequency.
Explain resonant frequency in LC parallel circuit and the graph of current and frequency.
Under what condition the current in LCR circuit will be maximum, define resonant frequency
Explain phenomenon of electromagnetic induction using coil and magnet

116. 4 marks
Give theoretical proof of Lenz’s law of electromagnetic induction
Obtain expression for emf induced in a coil rotating with uniform angular velocity in uniform magnetic field
Derive an expression for the instantaneous current in parallel LC circuit hence obtain expression for impedance
Explain LC oscillator

117. Important formulae of EMI

118. Important formulae of EMI
In purely resistive circuit
In purely inductive circuit

119. Important formulae of EMI
In purely capacitive circuit
In L-R circuit

120. Important formulae of EMI
In L-C circuit
In C-R circuit

121. Important formulae of EMI
At Series Resonance
In L-C-R circuit
At parallel Resonance

122. Total marks 3/4 Questions may be of 1, 2, 3 or 4 marks
Electron and photon
Total marks 3/4
Questions may be of 1, 2, 3 or 4 marks

123. Electron and photon 2 marks
What is photoelectric effect? Define photoelectric work function
Define photoelectric work function, threshold frequency
State variation of photoelectric emission as intensity and frequency of incident light changes
State Einstein’s photoelectric equation and explain significance of each term
State the characteristics of photoelectric effect

124. What is photo electric cell and give two of its applications
Explain construction of photoelectric cell and mention one of its application
Draw a neat circuit diagram of experimental set up to study characteristics of photoelectric effect

125. 4 marks
Explain Einstein’s theory to explain photoelectric effect and discuss any two characteristics of photoelectric effect
Compare between classical and quantum theory explaining the photoelectric effect
Give any four applications of photoelectric effect and explain any two of them.

126. Important formulae related to Photoelectric effect

127. Atom molecule and nuclei
Total marks 4/6
Questions may be of 2,3,or 4 marks

128. Atom molecule and nuclei
2marks
Explain Geiger Marsden Experiment
State Bohr’s postulates for Hydrogen atom about electrostatic force , stationary orbit
Constituents of nucleus and relation with atomic number and atomic mass
State radioactive decay law

129. Atom molecule and nuclei
2marks
Define half life period and average period of radioactive substance.
Define decay constant and its relation with half life and average life period.
Explain term nuclear fission and fusion
Explain matter wave and its role in quantum condition of Bohr’s model
Draw labeled diagram of (any one)
Energy level for hydrogen atom
Davison Germer experiment
Decay curve

130. 3 marks State Postulates of Bohr’s theory with mathematical equations
Compare between matter waves & electromagnetic waves.
Explain Davisson and Germer experiment.
Obtain expression for total energy of an electron in a stationary orbit of Bohr
Assuming formula of energy obtain expression for wavelength of spectral lines
Draw energy diagram and explain Lyman and Balmer series

131. Obtain expression for linear velocity of an electron of hydrogen atom
3 marks
Prove that wavelength of matter wave in ang.unit is ratio of and square root of applied p.d. to an electron.
Obtain expression for linear velocity of an electron of hydrogen atom
Obtain expression for linear momentum of an electron of hydrogen atom
Obtain expression for angular speed of an electron of hydrogen atom
Obtain expression for frequency of an electron of hydrogen atom

132. Obtain expression for KE of an electron of hydrogen atom
Obtain expression for PE of an electron of hydrogen atom
Obtain expression for TE of an electron of hydrogen atom (= -Rhc )
Obtain expression for number of atoms present at given instant using law of radioactive decay.
Justify the definition of decay constant as reciprocal of time required for substance decays to 37% of original.

133. 4 marks
State first postulate of Bohr’s theory and derive expression for radius of stable orbit
Show that En1/n2
Explain origin of spectral lines for hydrogen atom
Draw energy level diagram and explain different series
Explain working & construction of an exp. which proves existence of matter waves.
Explain term binding energy, mass defect & give their relation.
Draw B.E. curve & Write down inferences from B.E. curve.

134. Important expressions in Atom molecule and nuclei

135. Total Marks 3/4 Possible questions 1,2,3 or 4 marks
Semiconductors
Total Marks 3/4
Possible questions 1,2,3 or 4 marks

136. Semiconductors 2 marks questions Define :
Conduction band and valence band
Forbidden energy gap and classification of elements in conductor, insulator and semiconductor on basis of FEG.
Intrinsic and extrinsic semiconductors
P-type and n-type semiconductors
Acceptor impurity and donor impurity

137. Semiconductors 2 marks questions Define :
p-n junction diode and barrier potentials of Si and Ge diode.
Reverse bias and forward bias of junction diode
Zener diode and it’s symbolic representation.
Solar cell and LED
NPN and PNP transistor
 and  for transistors

138. Semiconductors Symbolically represent AND and NOT gate
Symbolically represent NAND and NOR gate
What are essential conditions for oscillator circuit. (gain x Feed back factor =A. =1)
What do you mean by positive feedback and negative feedback.
Write down Barkhausen criteria for oscillator circuit

139. Semiconductors 3 marks questions
What do you mean by insulator, semiconductor and conductor. Explain on the basis of band theory by indicating figure.
Explain in details the use of diode as half wave rectifier.
Explain in details the use of diode as full wave rectifier.
Explain how Zener diode can be used as voltage regulator.
Explain working and construction of solar cell

140. Semiconductors 3 marks questions
Define  and  of transistor and obtain relation between them.
Represent graphically output characteristics of transistor in common emitter mode and define and indicate knee voltage.
Explain working of common emitter amplifier draw input output curves.
Explain transistor as a switch
Explain transistor as an amplifier.

141. Semiconductors 3 marks questions
Represent AND gate symbolically and provide its truth table.
Represent NOT gate symbolically and provide its truth table.
Represent NAND gate symbolically and provide its truth table.

142. Semiconductors 3 marks questions
Represent NOR gate symbolically and provide its truth table.
Represent OR gate symbolically and provide its truth table.

143. Semiconductors 4 marks questions
Explain in details the circuit to study CE characteristics and explain the input and output characteristics using proper graphs.
How will you use diode as full wave rectifier. Explain working of full wave rectifier in detail.

144. Communication Total Marks 2/3 Possible questions 1,2 or 3 marks
(Chapter of definitions)

145. Communication 2 mark questions
Define ground wave propagation and state factors affecting it.
Define sky wave propagation and state factors affecting it.
Define space wave propagation and state factors affecting it.
State principle of satellite communication
Explain how global communication is possible by geo stationary satellite.

146. Communication Define the term ( any two may be asked)
1.Signal 2.Transmitter
3.Transducer 4. Attenuation
5. Amplification 6.Noise
7. Receiver 8. Range
9.Bandwidth 10.Modulation
11.Demodulation 12.Reapeater
13. carrier wave 14. modulated wave
15. AM 16. FM 17.PM

147. Communication Draw block diagram for generalized communication system.
Draw block diagram for transmitter.
Draw block diagram for receiver.
Graphical representation of AM and FM
Mathematical expression for AM

148. Communication 3 mark questions
Write a short note on sky wave communication with appropriate diagram.
Explain different layers in atmosphere and there role in communication.
Explain different type of modulation and their applications
Explain (any one may be asked)
amplitude modulation and where it is used
Frequency modulation and where it is used
Phase modulation and where it is used