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The ratio of thickness of plates of two ...

The ratio of thickness of plates of two transparent medium A and B is 6 : 4. If light takes equal time in passing through them, then refractive index of A with respect to B will be

A

1.4

B

1.5

C

1.75

D

1.33

Text Solution

Verified by Experts

The correct Answer is:
2
By using `t=(mux)/c`
`implies mu_(B)/mu_(A) =x_(A)/x_(B) =6/4 implies ""_(A)mu_(B)=3/2=1.5`
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