Chapter 29 Review Questions

AM band radio waves travel farther than FM band radio waves because

(a) AM waves travel faster than FM waves

(b) AM wavelengths are shorter than FM wavelengths

(c) AM waves are scattered more than FM waves

(d) AM waves are diffracted more than FM waves

If laser light passes by a hair, a pattern of light and dark can be seen on a properly placed screen. What phenomenon (phenomena) is (are) being observed?

(a) diffraction

(b) polarization

(c) chromatic aberration

(d) all of the above

(e) none of the above

Polaroid sunglasses worn in a normal viewing position will eliminate polarized glare.

(a) vertically

(b) horizontally

(c) all

Red is bent the most when it travels through a

(a) light pipe (optical fiber)

(b) prism

(c) grating

Two polaroids that have their polarization axes at 45^o to each other will still allow light to pass through.

(a) True

(b) False

The point where a soap bubble bursts will be black just as it bursts.

(a) True

(b) False