Question
Physics Question on Refraction
The refractive index of glass with respect to air is 2. The critical angle at their interface i
A
30°
B
45°
C
60°
D
90°
Answer
30°
Explanation
Solution
The correct answer is option (A): 30°
The refractive index of glass with respect to air is 2. The critical angle at their interface i
30°
45°
60°
90°
30°
The correct answer is option (A): 30°