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Question: Answered & Verified by Expert
A parallel beam of monochromatic light falls normally on a single narrow slit. The angular width of the central maximum in the resulting diffraction pattern
PhysicsWave OpticsMHT CETMHT CET 2020 (12 Oct Shift 1)
Options:
  • A decreases with increase of slitwidth.
  • B increases with increase of slitwidth.
  • C decreases with decrease of slitwidth.
  • D may increase or decrease.
Solution:
1556 Upvotes Verified Answer
The correct answer is: decreases with increase of slitwidth.
$X=\frac{2 \lambda D}{a}, X$ will decrease if a increases

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