JEE · NEET Previous Year Question

In an interference pattern of Young's double slit experiment, at a point we observe the order maximum for a monochromatic light source with wavelength . What order will be visible here if the source is replaced by a light of wavelength ?

Topic: JEE PYQ

Answer: A. Full step-by-step solution below.

  1. A15
  2. B10
  3. C8
  4. D18

Correct answer: A

Solution

(a) We have, ,
Where, position of -th maxima

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