Question:medium

What is the refractive index of water at 25◦C?

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The refractive index of water is critical for calculating light refraction in optics and laboratory experiments.
Updated On: Jan 17, 2026
  • 1.45
  • 1.256
  • 1.822
  • 1.333
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The Correct Option is D

Solution and Explanation

Water's standard refractive index at 25°C is 1.333. This value signifies the ratio of light's speed in a vacuum to its speed in water, making it fundamental for optical experiments and calculations.

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