State two effects caused by the refraction of light.

The major effects of refraction of lights are:

  • Bending of light.
  • Change in wavelength of light.
  • Splitting of light rays if it is polychromatic in nature.

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.

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