If absolute refractive index of a medium is 1.5, what is the speed of light in that medium?

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Solution

1.5= (speed of light in vacuum) / (speed of light in medium)
1.5 = (3 x 10^8) / speed of light in medium
speed of light in medium = (3 x 10^8) / 1.5
= 2 x 10^8 m/s

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If absolute refractive index of a medium is 1.5, what is the speed of light in that medium?

1.5= (speed of light in vacuum) / (speed of light in medium) 1.5 = (3 x 10^8) / speed of light in medium speed of light in medium = (3 x 10^8) / 1.5 = 2 x 10^8 m/s

1.5= (speed of light in vacuum) / (speed of light in medium)
1.5 = (3 x 10^8) / speed of light in medium
speed of light in medium = (3 x 10^8) / 1.5
= 2 x 10^8 m/s