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InterviewSolution
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Calculate the speed of light in water of refractive index 4÷3 if the speed of light in air is 3 ×10 |
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Answer» Since Refractive index of water = speed of light in air/speed of light in water Therefore speed of light in water=speed of light in air/refractive indexSpeed of light in water= 3×10is to power 8/ 4/3 =2.25×10is to power8 m/s(approx) Refractive index = speed of light in air / speed of light in water4/3=3*10^8/speed of light in waterSpeed of light in water=3*10^8*3/4Speed of light in water=9*10^8/4Speed of light in water=2.25*10^8 |
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