Physics 1320 Mount Exam 2 Practice Problems

41 Questions | By Kristendeerhake | Updated: Mar 21, 2022 | Attempts: 72

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1.

Light is emitted when
- A.
  
  Atomic nuclei are made to vibrate
- B.
  
  High-frequency sound waves strike matter
- C.
  
  Electromagnetic waves emanate from matter
- D.
  
  Electron clouds of atoms are forced into oscillation
2.

The law of reflection holds for
- A.
  
  Both curved and plane mirrors
- B.
  
  Only plane mirrors
- C.
  
  Only curved mirrors
- D.
  
  Neither of these
3.

When light reflects from a surface, there is a change in its
- A.
  
  Frequency
- B.
  
  Speed
- C.
  
  Wavelength
- D.
  
  All of these
- E.
  
  None of these
4.

A diver shines light up to the surface of a smooth pond at a 10 degree angle to the normal. Some of the light passes into the air above, and the part that reflects back into the water makes an angle to the normal of
- A.
  
  Less than 10 degrees
- B.
  
  10 degrees
- C.
  
  Not enough information to answer
- D.
  
  More than 10 degrees
5.

Interference occurs when two (or more) waves meet while traveling along the same medium.
- A.
  
  True
- B.
  
  False
6.

Interference can be constructive or destructive.
- A.
  
  True
- B.
  
  False
7.

Interference of two waves at a given location results in the formation of a new pattern which has a greater amplitude than either of the two interfering waves.
- A.
  
  True
- B.
  
  False
8.

The meeting of a trough of one wave with a trough of another wave results in destructive interference.
- A.
  
  True
- B.
  
  False
9.

Young's experiment provided evidence that light exhibits particle-like behavior.
- A.
  
  True
- B.
  
  False
10.

The only way for two waves to interfere constructively is for a crest to meet a crest or a trough to meet a trough.
- A.
  
  True
- B.
  
  False
11.

Young's experiment depends upon the use of light from two sources.
- A.
  
  True
- B.
  
  False
12.

Refraction results from differences in light's
- A.
  
  Frequency
- B.
  
  Speed
- C.
  
  Incident angles
- D.
  
  All of these
13.

The average speed of light is greatest in
- A.
  
  Green glass
- B.
  
  Red glass
- C.
  
  Blue glass
- D.
  
  Orange glass
- E.
  
  Is the same in all of these
14.

The critical angle is least in which of the following?
- A.
  
  Vacuum (empty space)
- B.
  
  Water
- C.
  
  Glass
- D.
  
  Diamond
15.

A type of lens that spreads out parallel light is a
- A.
  
  Converging lens
- B.
  
  Diverging lens
- C.
  
  Combination of converging-diverging lens
16.

A person standing waist-deep in a swimming pool appears to have short legs because of the light
- A.
  
  Absorption
- B.
  
  Diffraction
- C.
  
  Reflection
- D.
  
  Refraction
- E.
  
  Interference
17.

Different colors are dispersed by a prism because different colors in the prism have different
- A.
  
  Frequencies
- B.
  
  Speeds
- C.
  
  Energies
- D.
  
  Directions
- E.
  
  None of these
18.

According to Huygen's principle, every point on a wave
- A.
  
  Is a diffraction source
- B.
  
  Is a superposition of every other part of a wave
- C.
  
  Behaves as a source of new waves
- D.
  
  All of these
19.

Diffraction is more pronounced through relatively
- A.
  
  Large openings
- B.
  
  Small openings
- C.
  
  Same for each
20.

Waves diffract the least when their wavelengths are
- A.
  
  Long
- B.
  
  Short
- C.
  
  Both diffract the same
21.

Diffraction is a result of
- A.
  
  Dispersion
- B.
  
  Reflection
- C.
  
  Refraction
- D.
  
  Polarization
- E.
  
  Interference
22.

Polarization is a property of
- A.
  
  Transverse waves
- B.
  
  Longitudinal waves
- C.
  
  Both
- D.
  
  Neither
23.

Monochromatic light is light of a single
- A.
  
  Color
- B.
  
  Frequency
- C.
  
  Wavelength
- D.
  
  All of these
24.

The spacing between double-slit interference fringes is increased if the slits are
- A.
  
  Narrower
- B.
  
  Closer together
- C.
  
  Wider
- D.
  
  Farther apart
25.

If an object is placed inside the focal point of a diverging lens, the image is
- A.
  
  Virtual, upright and reduced
- B.
  
  Real, upright and reduced
- C.
  
  Virtual, inverted and reduced
- D.
  
  Virtual, upright and enlarged