The refractive index of water is 4/3. How much time will light take to travel through a water column of length 500 m?

22500000KM / Hr
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ghjhgjfhj
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Speed of light in water =4/3×3×10^8 m/s 2.25×10^8 m/s Time=distance /speed 500/2.25×10^8 seconds 2.22×10^-6 seconds
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i agree with prakhar
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The refractive index of water is 4.3 how much time will it take to travel through a water column of 500 m

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Speed=Distance/time 2.5×10^8m/s=500m/time So; 500/2.5×10^8=time =2.22×10^-6 sec
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