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The time required for the light to pass ...

The time required for the light to pass through a glass slab (refractive index=1.5) of thickness 4 mm is
(C=`3xx10^(8)` m `s^(-1)`,speed of light in free space)

A

`10^(-11)sec`

B

`2xx10^(-11)sec`

C

`2xx10^(+11)` sec

D

`2xx10^(-5)` sec

Text Solution

Verified by Experts

The correct Answer is:
B

Speed of light in glass slab is
`v=(c )/(mu)implies(3xx10^(8))/(1.5)impliesC=sin^(-1)((2)/(3))`
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