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Define Snell\'s law . |
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Answer» A snell law is a law stating that the ratio of the sines of the angles of incidence and refraction of a wave are constant when it passes between two given media. According to Snell’s law, The ratio of the sine of the angle of incidence to the sine of angle of refraction for a given pair of media is constant. This constant is called refractive index (n) of second medium with respect to first medium.Marthematical expression for Snell\'s law is,sini/sinr = n |
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