Reading Quiz Ch 22 (Wave Optics)

Reading Question 22.08

In a laboratory experiment, a diffraction grating produces an interference pattern on a screen. If the

number of slits in the grating is increased, with everything else (including the slit spacing) the same, then

The fringes stay the same brightness and get closer together.

The fringes stay the same brightness and get farther apart.

The fringes stay in the same positions but get dimmer and wider.

The fringes stay in the same positions but get brighter and narrower.

The fringes get brighter, narrower, and closer together.

Reading Question 22.09

A laboratory experiment produces a single-slit diffraction pattern on a screen. If the slit is made narrower,

the bright fringes will be

There will be no fringes because the conditions for diffraction won't be satisfied.

Farther apart.

Closer together.

In the same positions.

Reading Question 22.06

What kind of diffraction apertures are studied in this chapter?

Single slits only

Circles only

Squares only

Both single slits and circles

Both single slits and squares

Reading Question 22.02

What is a diffraction grating?

A device used to grate cheese and other materials

A musical instrument used to direct sound

A plaque with a tiny circular aperture

An opaque object with many closely spaced slits

Diffraction gratings are not covered in Chapter 22.

Reading Question 22.04

This chapter discussed

only the acoustical interferometer.

only the Michelson interferometer.

only the Fabry-Perot interferometer.

both Michelson and Fabry-Perot interferometers.

both acoustical and Michelson interferometers.

Reading Question 22.07

A laboratory experiment produces a double-slit interference pattern on a screen. The point on the screen

marked with a dot is how much farther from the left slit than from the right slit?

1.5 λ.

2.0 λ.

2.5 λ.

1.0 λ.

3.0 λ.

Reading Question 22.01

What was the first experiment to show that light is a wave?

Young’s double-slit experiment

Galileo’s observation of Jupiter’s moons

The Pound-Rebka experiment

Measurements with the Michelson-Morley interferometer

Millikan’s oil drop experiment

Reading Question 22.05

The spreading of waves behind an aperture is

more for long wavelengths and less for short wavelengths.

less for long wavelengths and more for short wavelengths.

the same for long and short wavelengths.

not discussed in this chapter.

Reading Question 22.03

When laser light shines on a screen after passing through two closely spaced slits, you see

a diffraction pattern.

interference fringes.

two dim, closely spaced points of light.

constructive interference.