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A ray of light incident on face AB of an equilateral glass prism, shows minimum deviation of 30@ .Calculate the speed of light through the prism. |
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Answer» Solution :Calculation of SPEED of LIGHT. `mu=(SIN((A+deltam)/2))/(sin(A/2))=(sin((60^(@)+30^(@))/2))/(sin((60^(@))/2))=sqrt(2)` Also `mu=c/vimpliesv=(3xx10^(8))/(sqrt(2))m//s` `=2.122xx10^(8)m//s` |
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