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Question: Answered & Verified by Expert
In Young's double slit experiment, if the source of light changes from orange to blue then:
PhysicsWave OpticsJEE MainJEE Main 2021 (27 Jul Shift 1)
Options:
  • A the central bright fringe will become a dark fringe.
  • B the distance between consecutive fringes will decrease.
  • C the distance between consecutive fringes will increase.
  • D the intensity of the minima will increase.
Solution:
2847 Upvotes Verified Answer
The correct answer is: the distance between consecutive fringes will decrease.
Fringe width =λDd.
As λ decreases, fringe width also decreases.

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