What do you mean by refraction and what is its cause?

Discussion in 'CBSE Class 10 Physics Help' started by Vinila Choudary, Jan 19, 2012.

  1. Vinila Choudary

    Vinila Choudary Active Member

    When a ray of light travels from one optical medium to another it changes its direction. This bending of light is called refraction. The cause of refraction is the change in speed of light in different media due to their different optical densities.

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