Question

If the angle of incidence is changed to ${60}^o$, then minimum deviation will be

• A. more than ${36}^o$
• B. less than ${36}^o$
• C. ${36}^o$
• D. cant say

Answer 1

The correct option is A more than ${36}^o$

For any angle of incidence other than the minimum angle of incidence, the angle of deviation is greater than the minimum angle of deviation i.e. ${36}^o$.