Question
Complete the statements and explain :
The change in __________ of light rays while going from one medium to another is called refraction.

Answer

The phenomenon of change in the direction of light when it passes from one transparent medium to another obliquely is called refraction.
Light travels along a straight line path in a transparent medium. But, it does not travel in the same direction in all media.
The direction of light rays change when it enters from one transparent to another as the velocity of light is different in different media.

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