ICSE Class 10 Physics 2013 Solved Paper

Question : 16 of 70

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The refractive index of glass with respect to air is 1.5. What is the value of the refractive index of air with respect to glass?

Solution:

\;{ }_a µ_g=\;{1}/{{ }_g µ_a}

\;{ }_g µ_a=\;{1}/{{ }_a µ_g}=\;{1}/{1.5}=\;{10}/{15}

\;{ }_g µ_a=\;{2}/{3}=0.667

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