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.Light travels through a glass plate of thickness d. If n is the refractive index of glass and c is the velocity of light in vacuum, the time taken by light to travel through the glass plate is a) n/cd b) nc/d c) nd/c d) ndc

.Light travels through a glass plate of thickness d. If n is the refractive index of glass and c is the velocity of light in vacuum, the time taken by light to travel through the glass plate is a) n/cd b) nc/d c) nd/c d) ndc

Grade:upto college level

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
Dear student

The answer is c

n*d/c

Regards
Vikas TU
14149 Points
3 years ago
Dear student 
Speed =distance /time
Distance =refractive index×thickness
C=n×t/time
So ,t=n×t/c
Good Luck 

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