A mark at the bottom of a liquid appears to rise by `0.1m`. The depth of the liquid is `1m`. The refractive index of the liquid is

Options

A. 1.33
B. `(9)/(10)`
C. `(10)/(9)`
D. 1.5

Answer

C

Explanation

`d_("app") = (d_("actual"))/(n) rArr n = (1)/(0.9) = (10)/(9)`.