Linearly Polarized Light Wave

Author:Embibe Experts
NEET
IMPORTANT

Important Questions on Linearly Polarized Light Wave

MEDIUM
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When the angle of incidence on a material is 60°, the reflected light is completely polarized. The velocity of the refracted ray inside the material is (in ms-1 )

EASY
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The angle of polarization for any medium is 60°. What will be the critical angle for this?

MEDIUM
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Plane polarised light is passed through a polaroid. On viewing through the polaroid we find that when the polariod is given one complete rotation about the direction of the light one of the following is observed

EASY
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A polaroid is placed at 45° to an incoming light of intensity I0. Now the intensity of light passing through polaroid after polarisation would be

EASY
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Unpolarised light is incident from air on a plane surface of a material of refractive index μ. At a particular angle of incidence i, it is found that the reflected and refracted rays are perpendicular to each other. Which of the following options is correct for this situation?

EASY
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When a plane polarised light is passed through an analyser and analyser is rotated through $90^{\circ},$ the intensity of the emerging light 

MEDIUM
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The critical angle for a certain wavelength of light in glass is 40°. Calculate the polarising angle and the angle of refraction in glass corresponding to it.

MEDIUM
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A light has amplitude A and the angle between analyser and polariser is 60°. Light transmitted by analyser has amplitude,

MEDIUM
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A unpolarised light is passing through three pohroids as shown final intensity will be :-

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HARD
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A polaroid making an angle 60° with electric vector then intensity reduced by a factor of :-

EASY
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The reflected ray is completely polarized when a ray is incident at a medium of refractive index 1.73, then the value of angle of refraction ?

MEDIUM
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A ray of unpolarised light is incident on a glass plate at the polarising angle θP. Then

MEDIUM
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A light ray is incident on a glass slab. It is partially reflected and partially transmitted. Then the reflected ray is,

EASY
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Polarised glass is used in sun glasses because,

EASY
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When unpolarized light beam is incident from air onto glass n=1.5 at the polarising angle,

MEDIUM
IMPORTANT

A parallel beam of light is incident at an angle of 60° on a glass plate surface and the reflected beam is completely polarized. What is the angle of refraction? Also calculate the refractive index of glass.