Refraction

Asked by  | 27th Jun, 2008, 04:41: PM

Expert Answer:

refraction occurs when light travels from denser to rearer medium or rarer to denser medium, bending of light round the corners of the obstaceles , or apertures is called diffraction.   mirror always form virtual image.

Answered by  | 28th Jun, 2008, 12:50: PM

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