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Question: Answered & Verified by Expert
If yellow light emitted by sodium lamp in Young's double-slit experiment is replaced by a monochromatic blue light of the same intensity
PhysicsWave OpticsNEET
Options:
  • A fringe width will decrease
  • B fringe width will increase
  • C fringe width will remain unchanged
  • D fringe width will become less intense
Solution:
1664 Upvotes Verified Answer
The correct answer is: fringe width will decrease
As β=λDd and λb<λy

   Fringe width β will decrease

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