How does the refractive index of a medium depends on its temperature.l?
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Answer :
Refractive index decrease with the increase in temperature of medium.
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We know that
Refractive index = Speed of light in rarer medium /Speed of light in densser medium
NoW
when the temprature increase the medium become less denser and vice versa
so on increasing temperature the denser medium give large value which is inversely proportional to rarer so the
refractive index decrease
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