Question

angle of prism is 60 degree.lf the angle of refraction on the first refracting surface is 25 degrees. what is the angle of incidence on the second refracting surface ​

Answer 1

Answer:

Explanation:

Correct option is

D

None of these

Here, i  

1

​

=15  

o

,A=60  

o

,δ=55  

o

,i  

2

​

=e=?

As i  

1

​

+i  

2

​

=A+δ

i  

2

​

=A+δ−i  

1

​

=60  

o

+55  

o

−15  

o

=100  

o