If the refractive index of water is (4)/...

If the refractive index of water is `(4)/(3)` and the velocity of light in vacuum is `3 xx 10^(8)m * s^(-1)` , how much time will light take to travel a distance of 900 m in water? '

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The correct Answer is:

`4 xx 10^(-6_(s))`

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CHHAYA PUBLICATION-REFRACTION OF LIGHT-Problem set - I

If the refractive index of water is (4)/(3) and the velocity of light ...
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