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Question: Answered & Verified by Expert
An unpolarised beam of intensity $I_{0}$ falls on a polaroi(d)The intensity of the emergent light is
PhysicsWave OpticsCOMEDKCOMEDK 2018
Options:
  • A $I_{0} / 2$
  • B $I_{0}$
  • C $I_{0} / 4$
  • D Zero
Solution:
2149 Upvotes Verified Answer
The correct answer is: $I_{0} / 2$
When an unpolarised beam of intensity $I_{0}$ falls on a polaroid, then after polarisation, the intensity of the emergent beam of light becomes $\frac{I_{0}}{2}$.

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