A thin prism of glass is placed in air and water respectively. If `n_(0) = (3)/(2)` and `n_(w) = (4)/(3)`, then the ratio of deviation produced by the prism for a small angle of incidence when placed in air and water separately is:

Answer

4

Explanation

`delta_(a)(3/2-1)xxA=A/2`
`delta_(W)=((3//2)/(4//3)-1)A=A/8`
`(delta_("air"))/(delta_("water"))=4/1`