Question

proof of relation between angle of prism and angle of refraction

Answer 1

∠I+∠E=∠A+∠D∠I+∠E=∠A+∠D Angle of incidence + angle of emergence = angle of prism (Normally 60∘) + angle of deviation.

Answer 2

Angle r1 + angle r2= angle of prism(A)