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Unpolarised light of intensity 32 watt m^(-2) passes through three polarises such that the transmission axes of the first and second polarises makes an angle 30^(@) with each others the transmission axes of the second and third polarises makes an angle 60^(@) with each other. The intensity of final emerging light will |
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Answer» 32 watt `m^(-2)` `I=(I_(0))/(2)cos^(2)30^(@)""cos^(2)60^(@)=3` watt `m^(-2)` |
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