Question

If the currency cut angle of a ray of light from a prism hamg prism angle 60° and refractive index √3 as 60° Find the angle of deviation of the ray of light - 300 450 60° 150​

Answer 1

Answer:

PLZ MARK ME BRAIN LIST

Explanation:

Correct option is

A

30

∘

A ray is projected on face LM of the prism gets refracted from the two faces of the prism and finally emerges out of it.

For minimum i, the emergent ray must graze on the face LN i-e. e=90

o

Using Snell's law for face LN, n

2

sinr

2

=n

1

sine

3

7

sinr

2

=1×sin90

o

This gives r

2

=40.89

o

As A=r

1

+r

2

,A=60

o

r

2

=19.11

o

Using snell's law for face LN, 1×sini=

3

7

×sin19.11

o

This gives i=30

o