Question

If an angle of minimum deviation of 300

for a prism occurs corresponding to an angle of

incidence of 400

, what will be the angle of deviation, for :

a. Angle of incidence = 450

.

b. Angle of incidence = 370
​

Answer 1

Explanation:

angle of minimum deviation (dm)=2i-A

where i is angle of incidence

A is angle of prism

dm=2i-A

300=2(400)-A

A=800-300

A=500

a.dm=2i-A

dm=2(450)-500

dm=400

b.dm=2i-A

dm=2(370)-500

dm=240