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Question: Answered & Verified by Expert
Assertion: When white light fall on the compact disc, multicolours are seen after reflection.
Reason: CD disc behaves like a prism.
PhysicsRay OpticsAIIMSAIIMS 2011
Options:
  • 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.
Solution:
2230 Upvotes Verified Answer
The correct answer is: If both assertion and reason are true and reason is the correct explanation of assertion.
The CD acts like a prism because the narrow grooves are so close to each other that you cannot see the separation. But, white light fall on the CD will be separated by multicolours by grooves.

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