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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