, ,200

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the pattern shrinks in size (central maximum less wide; other maxima in closer to it) 2.the pattern increases in size (central maximum wider; other maxima farther from it) 3.it does not affect the size of the pattern 4.the width of the central maximum decreases, but the other maxima do not change in position or width 5.the width of the central maximum increases, but the other maxima do not change in position or width

When you look at a single slit diffraction pattern produced on a screen by light of a single wavelength, you see a bright central maximum and a number of maxima on either side, their intensity decreasing with distance from the central maximum. If the width of the slit is decreased, _____ the pattern increases in size (central maximum wider; other maxima farther from it) 2.the width of the central maximum increases, but the other maxima do not change in position or width 3.it does not affect the size of the pattern 4.the pattern shrinks in size (central maximum less wide; other maxima in closer to it) 5.the width of the central maximum decreases, but the other maxima do not change in position or width

When you look at a single slit diffraction pattern produced on a screen by light of a single wavelength, you see a bright central maximum and a number of maxima on either side, their intensity decreasing with distance from the central maximum. If the width of the slit is increased, _____ it does not affect the size of the pattern 2.the width of the central maximum increases, but the other maxima do not change in position or width 3.the width of the central maximum decreases, but the other maxima do not change in position or width 4.the pattern shrinks in size (central maximum less wide; other maxima in closer to it) 5.the pattern increases in size (central maximum wider; other maxima farther from it)

You could determine the index of refraction for visible light of a dark but reflective medium such as black glass by measuring the _____

c 2.b 3.e 4.a 5.d

Scattered light in the atmosphere is often partially polarized. What is the best way to determine whether or not light from a particular direction in the sky shows polarization? To rotate a piece of polaroid film about an axis perpendicular to the ray while looking through it in that direction. 2.To reflect the rays from that direction on a shiny metal surface. 3.To rotate a piece of polaroid film about an axis parallel to the ray while looking through it in that direction. 4.To squint while looking in that direction. 5.To diffract the light through a single slit.

When you look through a sheer curtain at a distant street lamp, you see a pattern of colored spots of light. This occurs by _____ reflection of light waves by the sides of the threads 2.interference of light waves that pass through the threads with light waves that pass through the openings between the threads 3.polarization of light in scattering and partial absorption by the threads 4.diffraction of light waves passing through the two dimensional pattern of openings between the threads 5.refraction of light waves differentially in the cylindrical threads

becomes wider. 2.remains the same. 3.becomes narrower.

If a classroom door is open slightly, you can hear sounds coming from the hallway. Yet you cannot see what is happening in the hallway. Why is there this difference? Light waves do not diffract through the single slit of the open doorway. 2.Sound waves can pass through the walls, but light waves cannot. 3.The open door is a small slit for sound waves, but a large slit for light waves. 4.The open door is a large slit for sound waves, but a small slit for light waves.

The width of the peak decreases and the number of interference fringes it encloses decreases. 2.The width of the peak decreases and the number of interference fringes it encloses increases. 3.The width of the peak decreases and the number of interference fringes it encloses remains the same. 4.The width of the peak increases and the number of interference fringes it encloses decreases. 5.The width of the peak increases and the number of interference fringes it encloses increases. 6.The width of the peak increases and the number of interference fringes it encloses remains the same.

Cat's eyes have pupils that can be modeled as vertical slits. At night, would cats be more successful in resolving _____? headlights on a distant car 2.vertically-separated lights on the mast of a distant boat

Suppose you are observing a binary star with a telescope and are having difficulty resolving the two stars. You decide to use a colored filter to maximize the resolution. (A filter of a given color transmits only that color of light.) What color filter should you choose? blue 2.green 3.yellow 4.red

If laser light is reflected from a phonograph record or a compact disc, a diffraction pattern appears. This is due to the fact that both devices contain parallel tracks of information that act as a reflection diffraction grating. Which device, _____, results in diffraction maxima that are farther apart in angle? record 2.compact disc

A polarizer for microwaves can be made as a grid of parallel metal wires about a centimeter apart. Is the electric field vector for microwaves transmitted through this polarizer _____? parallel to the metal wires 2.perpendicular to the metal wires

You are walking down a long hallway that has many light fixtures in the ceiling and a very shiny, newly waxed floor. In the floor, you see reflections of every light fixture. Now you put on sunglasses that are polarized. Some of the reflections of the light fixtures can no longer be seen (Try this!) The reflections that disappear are those _____ nearest to you 2.farthest from you 3.at an intermediate distance from you

For a particular transparent medium surrounded by air, find the dependence between the critical angle for total internal reflection and the polarizing angle