Question

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Answer 1

Answer:

Option(3)

Explanation:

Refractive index, also called index of refraction, measure of the bending of a ray of light when passing from one medium into another. As per Snell's law and the given information,

n₁ sin i = n₂ sin r

∴ (sin i/sin r) = n₂/n₁

Therefore,

Answer is n₂₁

Hope it helps!

Answer 2

Answer:

3 correct option.....................