A light ray incident in a medium of refractive index $\frac{4}{3}$ is shown in diagram. Interface separating the two mediums lies in $x z$ plane. Vector along incident ray is $3 \hat{i} - 4 \hat{j}$ .

Question

A light ray incident in a medium of refractive index 3 4 ​ is shown in diagram. Interface separating the two mediums lies in x z plane. Vector along incident ray is 3 i ^ − 4 j ^ ​ .

TestHub · Accepted Answer

r I ​ = + 3 i ^ − 4 j ^ ​ tan θ i ​ = 4 3 ​ θ i ​ = 3 7 ∘ μ 1 ​ sin θ i ​ = μ 2 ​ sin θ r ​ 3 4 ​ × 5 3 ​ = 5 8 ​ sin θ r ​ sin θ r ​ = 2 1 ​ θ r ​ = 3 0 ∘

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