Question

In refraction, light waves are bent on passing from one medium to the second medium, because, in the second medium.

• A. The frequency is different
• B. The coefficient of elasticity is different
• C. The speed is different
• D. The amplitude is smaller

Answer 1

The correct option is C The speed is different

When a light wave passes from one medium to other, then due to change in refractive index its velocity and wavelength changes.

So due to change in its velocity and direction, wave bents.

Option C is correct.