Question

If the speed of light in vacuum is 3x10 ^8 find the speed of light in a medium of absolute refractive index 1.5

Answer 1

We know that,

refractive index=speed of light in vacuum/speed of light in a medium

let the speed of light in a medium be n

therefore, 1.5=3*10^8/n

1.5n=3*10^8,

n=3*10^8*10/1.5*10=30*10^8/15

n=2*10^8 m/s

therefore speed of light in a medium is 2*10^8m/s

Answer 2

Answer:

above is your answer

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