Question

Considering the same angle of incidence of 45⁰,The angle of refraction

for three transparent media P,Q,R are 30⁰,35⁰ and 40⁰ respectively .The

speed of light will be maximum and minimum in which of the above three media?
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Answer 1

Answer:

We know that ratio of sine of angle of incidence to the sine of refraction gives refractive index. Increases in refractive index increases the range of bending. Here angle of incidence is same in every case. The angle of refraction is greater in c. It has less refractive index and hence, light suffer less bending, which increases its speed.

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Answer 2

Answer:

1. angle refraction of 45 is 60 degree