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26 Dec 2011 00:33:13 IST

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wat is critical angle

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sushmendra kumar singh

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28 Dec 2011 21:07:46 IST

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The incident angle at which the refracting angle becomes 90 degrees.

Neha Somani

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14 Jan 2012 15:03:52 IST

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when the angle of incidence is equal to critical angle ,the refraction angle is 90degree, used in fiber optic cables etc...

Neha Somani

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14 Jan 2012 15:09:06 IST

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when the angle of incidence is equal to critical angle ,the refraction angle is 90degree, used in fiber optic cables etc...

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