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PhysicsJEE Main 5 Apr 2026, Shift 1·Q14·MCQ·Easy–moderate

Wave Optics · Interference

In Young's double slit experiment, the fringe width of the interference pattern produced on the screen is 2.4 μm2.4\ \mu\mathrm{m}. If the experiment is carried out in another medium having refractive index 1.2, the fringe width will be μm\mu\mathrm{m}.
  1. (1)1.2
  2. (2)2
  3. (3)2.4
  4. (4)2.88
We corrected a printing error in the original paper

Source printed “the frings width of the interferences pattern”.

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