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Electromagnetic Waves - Questions and Answers

Practice questions on Electromagnetic Waves.

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21. Light is incident on a surface at a polarizing angle 57°. Then the reflected beam is at
A. 57°
B. 33°
C. 90°
D. 60°
Explanation:
22. According to Brewster’s law the tangent of polarizing angle is
A. equal to the refractive index of the medium
B. directly proportional to the square root of the refractive index of the medium
C. inversely proportional to the refractive index of the medium
D. directly proportional to the square of the refractive index of the medium
Explanation:
23. Light waves are
A. longitudinal
B. transverse
C. like sound waves
D. like pressure waves
Explanation:
24. Which one of the following is used to give a three dimensional view in stereoscopic motion picture
A. Polaroid
B. grating
C. prism
D. glass slab
Explanation:
25. An example of biaxial crystal is
A. Quartz
B. Mica
C. Ice
D. Calcite
Explanation:
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