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Physics · Wave Optics

JEE Main 2026 — 21 January, Evening Shift — Question 33

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. Option A:

    Both Statement I and Statement II are true

  2. Option B:

    Both Statement I and Statement II are false

  3. Option C:

    Statement I is false but Statement II is true

    Correct
  4. Option D:

    Statement I is true but Statement II is false

Answer: C

Step-by-step solution

Angular fringe width =λd=\frac{\lambda}{\mathrm{d}}

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Paper
21 January, Evening Shift
Subject
Physics
Chapter
Wave Optics
Topic
Young's Double Slit Experiment and Its Modifications

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Given below are two statements: Statement I: In a Young's double slit… | JEE Main 2026 PYQ with Solution · DhiX AI