Question

value of a if one angle is 48 degree and one angle is 61 degree?​

Answer 1

Step-by-step explanation:

Angle of minimum deviation

A - Angle of prism = 60

Since u want minimum deviation ,

Angle of incidence ( i )= Angle of emergence ( e ) = 48

i + e = A +

= 2i - A

= 2(48) - 60

= 96 - 60

= 36