Question

A ray of light enters a rectangular glass slab at angle θ1 = 45° and emerges at an angle θ2, as shown below. If refractive index of glass slab is root 2 then sin theta 2 is

Answer 1

Explanation:

apply snell's law

u1.sini=u2.sinr

u1=1

i=45°

1× sin45°= √2×sin r

sinr=1/2

r=30°

sin theta 2=1/2

theta=30°

Answer 2

Answer:

Hope it Helps

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Explanation: