Absolute refractive index of medium P is 1.5 and medium Q is 2.2.In which of these medium light propagate with lower speed?Give reason to support your answer.
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Absolute refractive index of medium P is 1.5 and medium Q is 2.2.In which of these medium light propagate with lower speed?Give reason to support your answer.
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Answer:
Explanation:
absolute refractive index means refractive index of any medium with respect to air / vaccum .
if refractive index of medium is 2.2 then ,
speed of light in vaccum / speed of light in medium= 2.2 ,we know the speed of light in vaccum is 3×10ki power 8 .
we get 3×10ki power 8 / speed of light in medium =2.2
=1.25 × 10 ki power 8