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![[Post New]](/templates/default/images/icon_minipost_new.gif) 3 Jul 2008 18:45:11 IST
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A ray of light is incident normally ona glass slab. What is the angle of refraction?
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3 Jul 2008 18:56:20 IST
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0o
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God does not care about our mathematical difficulties. He integrates empirically. ~~~Albert Einstein (1879-1955)~~~~
To divide a cube into two other cubes, a fourth power or in general any power whatever into two powers of the same denomination above the second is impossible, and I have assuredly found an admirable proof of this, but the margin is too narrow to contain it.~~~Pierre de Fermat (1601-1665)~~~
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3 Jul 2008 19:42:48 IST
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U can say zero degree but actually u CANT define angle of refraction here as NO refraction wud take place. Light wud pass thru slab without any deviation.
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4 Jul 2008 16:46:02 IST
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Its zero.
Its because the noramal ray incident on the boundary of interface passes undeflected.
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4 Jul 2008 20:43:15 IST
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zero degree
since i =0
therefore sin i = 0
therefore sinr=0
i.e. r=0..
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4 Jul 2008 20:49:52 IST
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0 degree as sin of angle of incidence /sin of angle of refractionn is a constant so as angle of incidence is 0 degree , refraction wud b zero
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