PYQ Vault

Fringe shift when a glass plate of refractive index 1.44 is replaced by one of 1.66

The same question, asked 2 times: 12 May 2024 S2, 18 Apr 2026 S1. Every wording below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    12 May 2024 S2

    20
    In Young's double slit experiment when a glass plate of refractive index 1.44 is introduced in the path of one of the interfering beams, the fringes are displaced by a distance 'yy'. If this plate is replaced by another plate of same thickness but of refractive index 1.66, the fringes will be displaced by a distance

    Tap an option to check your answer.

  2. Question 2

    18 Apr 2026 S1

    141
    When a glass plate of refractive index 1.441.44 is introduced in the path of one of the interfering beams, the fringes are displaced by a distance 'yy'. If this plate is replaced by another plate of same thickness but of refractive index 1.661.66, the fringes will be displaced by a distance

    Tap an option to check your answer.