Formula for refraction at plane surface a) n1u=n2vb)n1n2= UV c)n1v=n

1.	Formula for refraction at plane surface a) n1u=n2vb)n1n2= UV c)n1v=n2ud)n1/n2=v/u
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Formula for refraction at plane surface a) n1u=n2vb)n1n2= UV c)n1v=n2ud)n1/n2=v/u ​

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Formula for refraction at plane surface a) n1u=n2vb)n1n2= UV c)n1v=n2ud)n1/n2=v/u