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What is the speed of light in a denser medium of polarising angle 30^(@) ? |
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Answer» <P> Solution :If a light ray PASSING through a denser medium is incident on air SURFACE and the polarising angle`i_(p)=30^(@)`, then `tani_(p)=(1)/(n_(d))=(v_(d))/(C)`, where `v_(d)=`speed of light in denser medium and `c=`speed of light in air. `impliesv_(d)=ctani_(p)=(3xx10^(8))xx(tan30^(@))=SQRT(3)xx10^(8)ms^(-1)=1.732xx10^(8)ms^(-1)`. |
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