In young's experiment with a monochromatic source and two slits, one of the slits is covered with black…

In young's experiment with a monochromatic source and two slits, one of the slits is covered with black opaque paper, the fringes will
  1. be darker
  2. be narrower
  3. be broader
  4. not be observed

Solution

With only one slit there will be no interference and no fringe will be observed.

Asked in: MHT CET 2021 (23 Sep Shift 2)

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