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Laser and Wave Optics Concepts
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Laser and Wave Optics Concepts
Laser and Wave Optics Concepts
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1
Question
What does the acronym "LASER" stand for?
Answer
B. Light Amplification by Stimulated Emission of Radiation
2
Question
What is the term used to describe the nonequilibrium state that lasers require for operation?
Answer
B. Population Inversion
3
Question
The center frequency of laser radiation is typically near the frequency of?
Answer
B. Maximum gain
4
Question
What is a type of laser that is pumped with discharge lamps or laser diodes, generating high output powers, or lower powers with very high beam quality?
Answer
A. Solid State Laser
5
Question
What is the principle of laser amplification, in which photons with identical wavelength and phase are emitted?
Answer
C. Stimulated Emission
6
Question
What occurs when two waves meet while traveling along the same medium?
Answer
A. Interference
7
Question
What occurs when two interfering waves create a new wave with a higher amplitude, and a displacement occurring in the same direction as the two waves?
Answer
B. Constructive Interference
8
Question
What occurs when two waves traveling in the same medium interfere and cancel out each other?
Answer
D. Destructive Interference
9
Question
In the Two-Slit Experiment, what is the point where the two interfering waves are in constructive interference?
Answer
C. Bright Fringe
10
Question
What occurs when the two waves in the Two-Slit Experiment cancel each other out?
Answer
B. Dark Fringe
11
Question
What is the phenomenon where light bends around an obstacle?
Answer
D. Diffraction
12
Question
What is the minimum angular separation between two objects such that you can tell that there are two distinct objects?
Answer
A. Resolution
13
Question
What do you call the bright center of a circular aperture of diffraction?
Answer
A. Airy Disk
14
Question
What is the angular resolution when the diameter is 2m and the wavelength is 500nm?
Answer
B. 1.22 x 10^-7 radians
15
Question
What is the phenomenon that occurs when two slits are illuminated with light and an interference pattern is observed?
Answer
B. Two-slit interference
16
Question
In an ideal polarization filter, how much is the intensity reduced?
Answer
D. 0
17
Question
If two polarizers are placed one after another, what is the second polarizer called?
Answer
B. Analyzer
18
Question
At one particular angle of incidence, called the polarizing angle, the light for which E lies in the plane of incidence is not reflected at all but is completely refracted.
Answer
A. Polarizing Angle
19
Question
What would be the intensity of the transmitted light after going through two polarizers that are perpendicular to each other?
Answer
D. Becomes Zero
20
Question
Sunlight reflects off the smooth surface of a pool of honey with n1.55. For what angle of reflection is the reflected light completely polarized?
Answer
A. 69.17 degrees
21
Question
What is the phenomenon where two waves meet and the resulting displacement at any point is the algebraic sum of the displacements of the individual waves?
Answer
B. Principle of Superposition
22
Question
Which of the following is a fundamental property of light and a very important concept of physical optics?
Answer
B. Polarization
23
Question
What is the phenomenon that occurs when light passes through or bends around an obstacle or aperture?
Answer
B. Diffraction
24
Question
What is the term for a wave phenomenon in which the electric field oscillates in a fixed direction?
Answer
B. Polarization
25
Question
Which of the following is true about lasers?
Answer
D. All of the above
26
Question
What is the characteristic of light waves when they only have displacement in the x-direction?
Answer
A. Linearly polarized
27
Question
Who discovered that when the angle of incidence equals the polarizing angle, the reflected and refracted rays are perpendicular to each other?
Answer
C. Sir David Brewster
28
Question
What is the term for a very small segment of the electromagnetic spectrum that can be detected by human vision?
Answer
A. Visible light
29
Question
What is the ratio of the speed of light in vacuum to the speed in the material?
Answer
A. Index of refraction
30
Question
Which of the following lasers use ion-doped crystals or glasses, pumped by lamps or diode?
Answer
B. Solid-state lasers