Answer to Question #287047 in Optics for Elle

Question

Q2. A prism made of glass is surrounded by air.

a) Calculate the apical angle if the maximum angle of deviation for this prism is 65º, and it occurs when the angle of incidence at the first surface is 35º. (2 marks)

Answer 1

Solution:

Apical angle = angle of deviation - angle of incidence

$= 65º- 35º= 30º$