(i) What is the relation between the refractive index of water with respect to air ( a μ w ) and the refractive index of air with respect to water ( w μ a )

ICSE Class 10 Physics PYQ · 2019 Paper · Section I

2(b)2 Marks · 2019 · Section I · 2019 Paper

(i) What is the relation between the refractive index of water with respect to air (aμw) and the refractive index of air with respect to water (wμa)

(ii) If the refractive index of water with respect to air (aμw) is $\frac{5}{3}$. Calculate the refractive index of air with respect to water (wμa).

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(i) aμw = $\frac{1}{_wμ_a}$ i.e., they are inverse of each other.

(ii) Given, aμw = $\frac{5}{3}$

Therefore, wμa = $\frac{3}{5}$ = 0.6

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