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Given that the angle of the prism is 60^(@) and its RI for a certain colour 1.645. Calculate the angle of minimum deviation. |
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Answer» Solution :Given`A=60^(@)"" n =1.645"" D=`? `n=(SIN((A+D)//2))/(sinA//2)` `=(sin((60+D)//2))/(sin30)` `=(sin30^(@)cosD//2+cos30^(@)sinD//2)/(1//2)` `=(1//2 cos D//2+0.8660 sinD//2)/(1//2)` `0.8225="sin"(60+D)/(2)` `(60+D)/(2)=sin^(-1)0.8225` `(60+D)/(2)=55^(@)20.` `(60+D)=110^(@)40.` `D=50^(@)40.` |
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