Question

why refrection occur​

Answer 1

Answer:

Refraction occurs because of the difference in speed of light in different mediums.

Answer 2

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• Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light.

• Since the light speed changes at the interface, the wavelength of the light must change, too.

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• Light is refracted when it crosses the interface from air into glass in which it moves more slowly.

• Two laws of Refraction-:

1. The incident ray refracted ray, and the normal to the interface of two media at the point of incidence all lie on the same plane.
2. The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant.