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23 August, 00:01

When a beam of light passes from substance 1 (index of refraction = 1.55) to substance 2, it has an angle of incidence of 39 ∘

and an angle of refraction of 24∘ What's the index of refraction of substance 2? For those who'll attempt the problem, Snells law should be used. k

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  1. 23 August, 00:57
    0
    2.40

    Explanation:

    Snell's law states:

    n₁ sin θ₁ = n₂ sin θ₂

    where n₁ and n₂ are the indexes of refraction, θ₁ is the angle of incidence (relative to the normal), and θ₂ is the angle of refraction (relative to the normal).

    1.55 sin 39° = n sin 24°

    n = 2.40
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