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Light travels through a glass plate of thickness t and refractive index u. If c is the speed of light in vacuum, the time taken by light to travel this thickness of glass is



Light travels through a glass plate of thickness t and refractive index u. If c is the speed of light in vacuum, the time taken by light to travel this thickness of glass is


     


Grade:10

2 Answers

Navjyot Kalra
askIITians Faculty 654 Points
9 years ago

(d)

        Total thickness = t; Refrative index = m

        Speed of light in Glass plate=c/u

Spandana
13 Points
3 years ago
A):d
N(refractive index)=c/v
1/n=v/c
V=c/n
Time taken by light to travel the thickness of the glass plate =distance/velocity
                            =t/c/u
                             =ut/c.
 

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