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Question

A linearly polarized light can be obtained from an unpolarized light by which of the following method(s)?

A
Polarization by Reflection
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B
Polarization by Scattering
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C
Polarization by Refraction
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D
All of the above
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Solution

The correct option is D All of the above
When an unpolarized light is incident on a transparent medium at Brewster's angle then the reflected light is completely polarized and the refracted light is partially polarized but when we place a number of glass plates parallel to each other at Brewster's angle after successive refraction the refracted light can be plane polarized.

When unpolarized light incident on a medium containing microscopic suspended particles, then the incident light on these particles is scattered in different directions which is partially polarized.

Hence, option (D) is correct.

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