Question

A prism has a refracting angle of 60°. When placed in the position of minimum deviation, it produces a deviation of 30°. The angle of incidence is ______.

विकल्प

• 30°

• 45°

• 15°

• 60°

Answer 1

A prism has a refracting angle of 60°. When placed in the position of minimum deviation, it produces a deviation of 30°. The angle of incidence is 45°.

Explanation:

i = `("A"+delta_"m")/2`

= `(60+30)/2`

= 45°