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Critical angle of glass is θ_{1 and the critical angle of water is}θ_{2. Calculate the critical angle for water and glass surface. (}μ_g = 3/2, μ_w = 4/3)

Kaushik Ram , 15 Years ago

Grade 10

2 Answers

Amit Askiitiansexpert

Last Activity: 15 Years ago

Dear kaushik

The critical angle is the angle of incidence above which total internal reflection occurs. The angle of incidence is measured with respect to the normal at the refractive boundary. The critical angle $θ c$ is given by:

$\theta_c = \arcsin \left( \frac{n_2}{n_1} \right),$

critical angle = arcsin(4/3 / 3/2) = 62.73 degres

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Kaushik Ram

Last Activity: 15 Years ago

Dear me The critical angle is the angle of incidence above which total internal reflection occurs. The angle of incidence is measured with respect to the normal at the refractive boundary. The critical angle θc is given by: critical angle = arcsin(4/3 / 3/2) = 62.73 degres