Question

the critical angle for a liquid is 45 degree its refractive index will be​

Answer 1

Answer:

Explanation:

5.7 Critical angles and total internal reflection (ESBN9)

This angle of incidence is called the critical angle. The critical angle is the angle of incidence where the angle of refraction is 90°. The light must travel from an optically more dense medium to an optically less dense medium.