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The observer 'O' sees the distance AB as...

The observer 'O' sees the distance `AB` as infinitely large. If refractive index of liquid is `mu_(1)` and that of glass is `mu_(2)`, then `(mu_(1))/(mu_(2))` is :
.

A

2

B

`1//2`

C

4

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Using formula of spherical surface taking 'B' as object
`(mu_(2))/(infty)-(mu_(1))/((-2R))=(mu_(2)=mu_(1))/(-R)`
(`R` being the radius of the curved surface)
`(mu_(2))/(infty)-(mu_(1))/((-2R)) =(mu_(2)-mu_(1))/(-R) rArr (mu_(1))/(mu_(2))=2`.
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