Question

If the angle of incidence and the angle of refraction at the first refracting surface at 60o and 45o respectively then the refractive index of the material of the prism is ? a) 1.5 b) 1.3 c) 1.2 d) 1
Please solve it with a proper explaination..​

Answer 1

Explanation:

Angle of incidence, i=45

0

Angle of prism, A=60

0

Angle of minimum deviation, δ

m

=2i−A=30

0

⇒μ=

sin

2

A

sin(

2

A+δ

m

)

=

sin 30

0

sin 45

0

=

2

2

=

2