First slide

Polarisation

Question

Statement 1: The unpolarised light and polarized light can be distinguished from each other by using polaroid.
Statement 2: A polaroid is capable of producing plane-polarized beams of light.

Moderate

A

Both statements 1 and 2 are correct
B

Statement 1 is correct statement 2 is incorrect
C

Statement 1 is incorrect statement 2 is correct
D

Both statements 1 and 2 are incorrect

Solution

When a Polaroid is rotated in the path of unpolarised light, the intensity of light coming out from Polaroid remains undiminished because unpolarised light have vibrations in all possible planes. While a Polaroid when rotated in path of plane polarized light, its intensity will vary form maximum to minimum. Thus, using Polaroid, unpolarised light and polarized light can be distinguished from each other.

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