Question

A liquid is placed in a hollow prism of angle 60⁰. If the angle of minimum deviation is 30⁰. What is the refractive index of liquid –

• A. 1.41
• B. 1.50
• C. 1.65
• D. 1.95

Answer 1

Answer: (A)

1.41

Answer 2

µ = = $\frac { \sin 45 ^ { \circ } } { \sin 30 ^ { \circ } }$ = $\sqrt { 2 }$ = 1.41