Question

light travels through water with a speed of 2.25 into 10 raise to power 8 metre per second what is the refractive index of water​

Answer 1

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Answer 2

Answer: speed of light is 3×10^8

speed of water is 2.25×10^8

absolute index=

speed of light in air/vaccum

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speed of light in another medium

n=3×10^8m/s÷2.25×10^8m/s

n=3÷2.25

n=1.333

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