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JEE Main20203 Sep 2020Morning ShiftPhysicsWave OpticsActual

In a Young's double slit experiment, light of 500 nm is used to produce and interference pattern. When the distance between the slits is 0 . 05 mm , the angular width (in degree) of the fringes formed on the distance screen is close to :

Options

  1. A0 . 17 °
  2. B0 . 57 °
  3. C1 . 7 °
  4. D0 . 07 °

Correct answer

B. 0 . 57 °

Step-by-step solution

β 0 = λ d = 500 × 10 − 9 5 × 10 − 5 = 10 − 2 rad ∴ β 0 = 0 .57 °

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