the speed of light in a transparent medium is 0.7 times that of its speed in vacuum. Calculate the absolute refractive index of the medium.
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Speed of light in medium 1 = 0.7*speed of light in vacuum
We know that, Absolute refractive index = Speed of light in vacuum/speed of light in medium 1
= speed of light in vacuum/ 0.7*speed of light
in vacuum
= 1/0.7
= 10/7 = 1.42
We know that, Absolute refractive index = Speed of light in vacuum/speed of light in medium 1
= speed of light in vacuum/ 0.7*speed of light
in vacuum
= 1/0.7
= 10/7 = 1.42
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