Q.1.
The direction of polarization of an electromagnetic wave is considered to be the direction of __________
- a) Electric Field
- b) Magnetic field
- c) Resultant of Electric field and Magnetic Field
- d) Perpendicular to both Electric and Magnetic Field
Q.2.
The second polaroid placed after the ray has been polarized is called as __________
- a) Polarizer
- b) Analyzer
- c) Brewster’s Window
- d) Multi Polaroid
Q.3.
An unpolarized light can be polarized by __________
- a) Reflection
- b) Refraction
- c) Diffraction
- d) Interference
Q.4.
Which of the following is a uniaxial crystal?
- a) Borax
- b) Mica
- c) Quartz
- d) Selenite
Q.5.
For a glass surface, the value of polarizing angle is _________
- a) 45.7°
- b) 52.7°
- c) 57.5°
- d) 67.8°
Q.6.
The refractive index of a material is 1.What is the polarizing angle?
- a) 47.23°
- b) 51.02°
- c) 53.74°
- d) 60.25°
Q.7.
A polarized light of IntensityWm2 is incident on the analyzer at a certain angle. If the transmitted beam has an Intensity ofWmthe angle made with the vertical is _____________
- a) 30°
- b) 45°
- c) 60°
- d) 75°
Q.8.
What angle should the beam made with the vertical, so that after passing through the analyzer, it’s intensity should become 0.times the initial intensity?
- a) 30°
- b) 45°
- c) 60°
- d) 75°
Q.9.
The sunlight as received by the observer is __________
- a) Unpolarized
- b) Partially Polarized
- c) Polarized
- d) Varying Polarizability
Q.10.
If ray R1 is incident at the polarizing angle, which of the following rays are unpolarized?
- a) R1
- b) R2
- c) Both R2 and R3
- d) Both R1 and R3
Q.11.
At the angle of polarization, p, the angle between the reflected and the refracted beam is __________
- a) p
- b) π
- c) π /2
- d) p/2
Q.12.
Which of the two rays are polarized?
- a) X
- b) Y
- c) Both X and Y
- d) Neither X and Y