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Assertion : If the light from an ordinar...

Assertion : If the light from an ordinary source passes through a polaroid sheet, its intensity is reduced by half.
Reason : The electric vectors associated with the light wave along the direction of the aligned molecules get absorbed by polaroid.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
A polaroid consists of long chain molecules aligned in a particular direction. The electric vectors associated with the propagating light wave along the direction of the aligned molecules get absorbed. Thus if the light from an ordinary source passes through a polaroid sheet, its intensity get reduced by half.
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