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CBSE Class 10 Answered

Dispersion
Asked by | 31 May, 2008, 07:07: PM
Expert Answer

     When light passes through glass, it encounters TWO interfaces--one entering and the other leaving. It slows down at the first interface and speeds back up at the second. If the two interface surfaces are parallel to each other, as in a 'slab' of glass, all of the bending (and dispersion) that takes place at the first interfaces is exactly reversed at the second interface.

 

regards toppers expert

Answered by | 03 Jun, 2008, 01:58: PM

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