1. Good Luck! Final Exam Review Phys 222 – Supplemental Instruction

2. Some Resources Academic Success Center (google ASC ISU) Old Exams
Test preparation, stress strategies
Old Exams
Especially those from this semester!
Quizzes, Recitation Wk, Online Homework
Supplemental Instruction
Worksheets on pretty much every topic (google SI ISU)
Internet Resources
‘The Physics Classroom’ – lenses, interference, diffraction
Khan Academy
5/28/2018

3. Sec1
5/28/2018

4. 5/28/2018 A
Exam1, Sp09

5. 5/28/2018 D
Exam1, Sp09

6. In a homogenously charged solid sphere with radius R and charge density ρ a spherical cavity is cut out. The radius of the cavity is b, and its center is at a distance a from the center of the sphere. What is the electric field inside the cavity?
5/28/2018

7. 5/28/2018 A
Exam1, F10

8. 5/28/2018 C
Exam1, F10

9. 5/28/2018 C
Exam1, F10

10. 5/28/2018 E
Exam1, SP13

11. Sec 2
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12. 5/28/2018 E
Exam2, F10

13. Solve for the currents in each branch+ _ + _ l l
5/28/2018
ps3 - kirchoff's law
- Top left branch, going right, 5A
- Vertical brach going down, 4A
- Top right branch, going right, 1A
Check?

14. 5/28/2018 B
Exam2, F10

15. 5/28/2018 D
Exam2, F09

16. 1) Which direction does current flow in the inductor?
The switch has been closed for a long time. Someone then comes along and opens the switch. Just after it is opened:
1) Which direction does current flow in the inductor?
2) What is the energy stored in the inductor? + _ l
5/28/2018
1 hr. mark

17. Sec. 3
5/28/2018

18. Conceptual Break
Unpolarized light that goes through a series of 4 polarizers, each 30 degrees offset will have zero intensity after the fourth polarizer since the first and last polarizing axes are perpendicular.
To solve for a constructive interference on a diffraction grating, the formula dsin(θ) = mλ can be used.
For diffraction, m denotes the center of the mth order maxima.
The wavelength of the radiated photon is larger for an electron falling n=4 to n=3 than n=2 to n=1.
5/28/2018

19. 5/28/2018 B

20. A mirror is used to produce a virtual image that is 5
A mirror is used to produce a virtual image that is times bigger than the object. If the focal length of the mirror is 100 cm, where will the image be located?
5/28/2018
-400 cm

21. Consider a setup of Young’s double slit experiment where 10mm slits are separated by 15mm. If yellow light (wavelength 580nm) is shone on the slits, about how many interference maxima fall between the upper first and second diffraction bands?
5/28/2018

22. Two converging lenses, with the focal length f1 = 10 cm and f2 = 15 cm are placed 40 cm apart. An object is placed 60 cm in front of the first lens.
a) Find the position of the final image formed by the combination of the two lenses.
b) Find magnification of the final image formed by the combination of the two lenses.
5/28/2018

23. Natural light is incident on a thin film of crude oil (n = 1
Natural light is incident on a thin film of crude oil (n = 1.7) floating on a water surface (n = 1.33). The thickness of the film is 80nm. What color will you primarily see?
5/28/2018

24. 5/28/2018 D
Final, F09

25. A beam of x-rays with wavelength 0. 6nm scatters from electrons
A beam of x-rays with wavelength 0.6nm scatters from electrons. At what angle would the detector measure nm scattered x-rays?
5/28/2018