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Home » The speed of light in air is m/s. In medium X its speed is m/s and in medium Y the speed of light is m/s. Calculatea) relative refractive index of air and Xb) relative refractive index of air and Yc) relative refractive index of X and Y
The speed of light in air is 3\times {{10}^{8}}m/s. In medium X its speed is 2\times {{10}^{8}} m/s and in medium Y the speed of light is 2.5\times {{10}^{8}}m/s. Calculate
a) relative refractive index of air and X
b) relative refractive index of air and Y
c) relative refractive index of X and Y
CBSE | Class 10 | Lakhmir Singh | Physics | Refraction of Light
The speed of light in air is 3\times {{10}^{8}}m/s. In medium X its speed is 2\times {{10}^{8}} m/s and in medium Y the speed of light is 2.5\times {{10}^{8}}m/s. Calculate
a) relative refractive index of air and X
b) relative refractive index of air and Y
c) relative refractive index of X and Y

a) Air has a relative refractive index of 1.5, and X = (speed of light in air)/(speed of light in medium X)

b) Air’s relative refractive index is 1.2, with Y = (speed of light in air)/(speed of light in medium Y).

c) (speed of light in X)/(speed of light in Y) = 0.8 Relative refractive index of X and Y

i

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