N8erdkaTerkenzale N8erdkaTerkenzale

22-06-2016
Physics

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What best describes why the critical angle of an air-glass boundary is 39.3°?

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meerkat18 meerkat18

03-07-2016

A critical angle is described as the angle of incidence provided that the angle of refraction is equal to 90 degrees. The value of the critical angle depend on factors such as the materials present on different sides of the boundary. The critical angle of glass-water boundary is 39.3 degrees

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metchelle metchelle

03-07-2016

It is because the angle of incidence in glass is 90 degree.

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