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

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

G1 Physics · Accepted Answer

The incident light is unpolarized. An ideal polaroid transmits half of the incident intensity, independent of the orientation of its transmission axis. Therefore I=I₀/2. Option B.