Question

A beam of light passes from air into a substance
M. if the angle of incidence is 40° and the angle of
refraction is 30°, calculate the refractive index of the
substance. Given, sin 40° = 0.6428, sin 30º = 0.5.​

Answer 1

Answer:

So sorry nahi pata sorrry

Answer 2

Given that,

Angle of incident i=72

0

Angle of refraction r=40

0

We know that,

Refractive index is

n=

sinr

sini

n=

0.642

0.951

n=1.48

Hence, the refractive index is of substance is 1.48