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Waves Quiz 5 - Ch 31 

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You only have one chance to take this quiz...  Practice the Study Guide first!!!!


Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Huygens' principle says that
a.
when light passes through two narrow slits, it produces an interference pattern.
b.
each point on a wave front acts as a new source of wavelets.
c.
when the crests of waves overlap, their individual effects add together.
d.
light waves bend slightly when passing through an opening.
e.
all points on a wave front are connected.
 

 2. 

When a wave passes through an opening, some of the wave is bent. This phenomenon is called
a.
polarization.
b.
reflection.
c.
diffraction.
d.
refraction.
e.
interference.
 

 3. 

Diffraction occurs for
a.
radio waves.
b.
X-rays.
c.
light.
d.
electron beams.
e.
all of the above.
 

 4. 

An interference pattern is produced when
a.
two or more light waves meet.
b.
the crests of two waves meet.
c.
the troughs of two waves meet.
d.
light passes through two narrow slits.
e.
all of the above
 

 5. 

Waves diffract the most when their wavelengths are
a.
long.
b.
short.
c.
neither of the above.
 

 6. 

Constructive interference occurs when
a.
the crest of one wave meets the trough of another wave.
b.
two waves of the same color overlap.
c.
the crests of two waves overlap.
d.
all of the above
e.
none of the above
 

 7. 

Destructive interference occurs when
a.
the crests of two waves overlap.
b.
two waves of the same color overlap.
c.
the crest of one wave meets the trough of another wave.
d.
all of the above
e.
none of the above
 

 8. 

When monochromatic light shines through two closely spaced narrow slits and onto a screen some distance away, the pattern on the screen has
a.
no light in it.
b.
two large bright spots.
c.
alternating dark and light bands.
d.
one large bright spot.
e.
none of the above
 

 9. 

Coherent light is many different rays of light all having the same
a.
frequency.
b.
wavelength.
c.
phase.
d.
direction.
e.
all of the above
 

 10. 

Light emitted by a laser is
a.
incoherent.
b.
coherent.
 

 11. 

Interference can be shown by using
a.
water waves.
b.
light waves.
c.
sound waves.
d.
all of the above
e.
none of the above
 

 12. 

Monochromatic light refers to light that is
a.
red.
b.
white.
c.
one color.
d.
a chrome color.
e.
all of the above
 

True/False
Indicate whether the statement is true or false.
 

 13. 

Huygens' principle is useful in explaining how waves propagate, but it can't explain reflection and refraction.
 

 14. 

When light falls on the edge of an object, diffraction occurs.
 

 15. 

Interference patterns are produced when two sources of waves are placed side by side.
 

 16. 

Two stereo speakers can be set side by side so there are some places in front of them where sound is very diminished.
 

 17. 

Within a laser, a light wave emitted from one atom stimulates the emission of light from a neighboring atom so that the crests of the two waves coincide.
 

 18. 

The laser is a source of energy.
 



 
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