Consider a light ray travelling in air is incident into a medium of refractive index 2n . The incident angle is twice that of refracting angle. Then, the angle of incidence will be:

JEE Main 2022 Physics question

Consider a light ray travelling in air is incident into a medium of refractive index . The incident angle is twice that of refracting angle. Then, the angle of incidence will be:

(1)
(2)
(3)
(4)Correct

Answer: (4)

Solution

Let the angle of incidence be , so the angle of refraction is . By Snell's law, ,

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-034552