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A ray of light passes from glass (mu = 1.5) to water (mu = 1.33). The value of the critical angle of glass is .......... |
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Answer» `SIN^(-1)(8/9)` `therefore C=sin^(-1)(1/n)` …...........(1) Here light RAY enter from to WATER, so relative refractive index will be taken.`therefore n=(n_g)/(n_w)=(1.5)/(1.33)` `therefore1/n=(1.33)/(1.5)=8/9` From equation (1), `C=sin^(-1)(8/9)` |
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