lights enters from air into water which has a refractive index of 1.33. calculate the speed of light in water. The speed of light in air is 3.0 X 10^8m/s. ans(2.26 X 10^8)
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Refractive index = Speed of light in vaccum / Speed of light in water. It is denotes as n = c / v, v = c / n= 3 × 10^8 m/s / (1.33) = 2.25 × 10^8 m/s. Therefore, refractive index of the water can be measure by the Speed of light in water is 2.25 × 10^8 m/s.
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