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Question: Answered & Verified by Expert
A diffraction pattern is obtained by making blue light incident on a narrow slit. If blue light is replaced by red light then
PhysicsWave OpticsMHT CETMHT CET 2022 (05 Aug Shift 1)
Options:
  • A there is no change in diffraction pattern.
  • B diffraction band become broader.
  • C diffraction bands become broader.
  • D diffraction bands become narrower.
Solution:
1647 Upvotes Verified Answer
The correct answer is: diffraction bands become broader.
The correct option is (C).
Concept Based: The width of the diffraction bands is directly proportional to the wavelength thus, a minor broadening is observed.

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