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  9. Q530

RRB Group D (Level-1 posts) 2022 · Question 530 of 598

The speed of light in two transparent media A and B are 2 × 108 m/sec and 2.25 × 108 m/sec. The refractive index of medium A with respect to medium B is equal to:

  1. A1.125Correct
  2. B4.50
  3. C0.89
  4. D4.25

Answer: A. 1.125

Explanation

The refractive index of medium A with respect to medium B is calculated as 2.25×108 2×108 ​ = 1.125 .

Source: RRB Group D 2022 Prev. Yr. Paper (22 Aug 2022) (Shift 1) - FreshersNow · reliable-secondary

← Q529View full paper (598 questions)Q531 →

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