A lens that is thinner at the center than the edges
a. is a converging lens
b. is a diverging lens
c. always forms a real image
d. always forms a virtual image
e. none of the above
[Ques. 2] A person looking through eyeglasses sees
a. real images
b. virtual images
c. erect images
d. inverted images
e. polarized images
[Ques. 3] If the magnification produced by an optical system is negative, the image is
a. smaller than the object
b. inverted
c. upside down
d. all of the above
[Ques. 4] The Hubble Space Telescope
a. has a flawed primary mirror
b. has been repaired
c. has failed
d. none of the above
[Ques. 5] You look at yourself in a plane mirror. If you move away from the mirror and look at yourself again, you now see
a. more of yourself
b. less of yourself
c. the same amount of yourself
d. a larger image of yourself
e. a smaller image of yourself
[Ques. 6] Fresnel lenses are
a. made of mirror segments
b. made of the surface portions of a regular lens
c. found in some auto headlamps and theater lights and rear windows of RVs
d. all of the above
[Ques. 7] When light enters glass from air, which of these properties of the light change?
a. frequency c. speed
b. wavelength d. all of the above
[Ques. 8] When a light ray traveling in air meets the surface of a piece of glass, which of the following occur at the interface?
a. The light is totally reflected.
b. Some of the light is reflected back into the air.
c. Some light enters the glass and is refracted toward the normal.
d. Some light enters the glass and is refracted away from the normal..
e. All of the light enters the glass.
[Ques. 9] The fact that light can be polarized shows that light is
a. polar c. an electromagnetic wave
b. monochromatic d. a transverse wave
[Ques. 10] Two otherwise identical light waves arriving at the same point with peak matching valley undergo
a. constructive interference
b. destructive interference
c. polarization
d. none of the above
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