Question

calculate the speed of light in water having refractive index 4/3 if speed of light in air is 3×10^8 m/s.​

Answer 1

Answer:

n=c/v

4/3=c/3×10^8

4×10^8m/s=c

speed of light in water is 4×10^8m/s

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Answer 2

Answer:

speed of light in water =4×10^8 m/s

Explanation:

refractive index= Speed of light in water/ speed of light in air

4/3 = speed of light in water/3×10^8m/s

so the speed of light in water =4×10^8 m/s