Question

Light is travelling from air to water at i =50° , which is greater than critical angle for air water interface. what fraction of light will be totally reflected?​

Answer 1

Answer:

100 Percent of light will be reflected because the total internal reflection will occur.

Explanation:

Given values,

The refractive index (μ) of water is given 1.333

The angle of incidence (i) is given 50°

Calculations -

sinc is equal to (1/μ)           [c is the critical angle of medium]

c = sin⁻¹(1/μ)

c =  sin⁻¹(1/1.333) = sin⁻¹(0.7502)

c is 48.61°

c<i, 48.61°<50°

Hence, the total internal reflection will occur.

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