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The speed of light in a transparent medium is 0.6 times as that of its speed in vacuum. What is the refractive index of the medium? (a) 1.0 (b) 1.33 (c) 1.55 (d)1.66
Asked by ashmeetkaur873 | 17 Oct, 2021, 12:22: PM
answered-by-expert Expert Answer
Refarctive index of transparent medium =  c / v
 
where c is speed of light in vacuum and v is speed of light in medium  .
 
we are given that ( v / c ) = 0.6 
 
Hence , Refarctive index of transparent medium =  1 / 0.6 = 1.666
Answered by Thiyagarajan K | 17 Oct, 2021, 02:09: PM

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