If the absolute refractive indices of glass and water are `(3)/(2)` and `(4)/(3)` respectively, what is the refractive index of glass with respect to water ?

Explanation

Data `: n_(g) = (3)/(2), n_(w) = ( 4)/(3), ._(g) n_(w) = ? `
`n_(g) = ( c )/( v_(g)), n_(w) = ( c )/( v_(w)), ._(g)n_(w)= ( v_(w))/(v_(g))`
`:. ._(g) n_(w) = ( n_(g))/(n_(w)) = ((3)/(2))/((4)/(3)) = ( 3 xx 3 )/( 4 xx 2 ) = ( 9)/( 8) `
This is refractive index of glass with respect to water.