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NEST2023PhysicsWave Optics

Consider the experimental set-up shown in the figure to observe the interference pattern. Note that the prism angle is close to . The correct option (s) regarding this experiment is (are)

Options

  1. Afringe width will increase with increasing angle .
  2. Bfringe width will decrease with the refractive index of the lens.
  3. Cfringe width will increase if the glass slab is lifted along y direction.
  4. Dfringes will alternate between dark and bright if glass slab is lifted along y direction.

Correct answer

D. fringes will alternate between dark and bright if glass slab is lifted along y direction.

Step-by-step solution

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