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PhysicsJEE Main 21 Jan 2026, Shift 2·Q9·MCQ·Easy–moderate

Wave Optics · Interference

Given below are two statements:

Statement I : In a Young's double slit experiment, the angular separation of fringes will increase as the screen is moved away from the plane of the slits

Statement II : In a Young's double slit experiment, the angular separation of fringes will increase when monochromatic source is replaced by another monochromatic source of higher wavelength

In the light of the above statements, choose the correct answer from the options given below:

  1. (1)Both Statement I and Statement II are true
  2. (2)Both Statement I and Statement II are false
  3. (3)Statement I is false but Statement II is true
  4. (4)Statement I is true but Statement II is false

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