The refractive index of glass with respect to air is 2. Then the critical angle of glass air interface is ………………….
A. 0°
B. 45°
C. 30°
D. 60°
Answer:C
The refractive index of glass with respect to air is 2. Then the critical angle of glass air interface is ………………….
A. 0° B. 45° C. 30° D. 60°