Question

If the angle of 30 find the refractive index of glass with respect to air i for a light ray in air be 45 and the angle of refraction in glass be

Answer 1

Answer:

ANSWER

Given ,

n

ag

=

2

3

∠i=30

0

From snell's law

n=

sinr

sini

By putting values of n, i in equation

we get

2

3

=

sinr

sin30

0

⇒sinr=

3

1

r=19

0

47

′

≃20

0

the angle of refraction is 20 degree.