A vessel having perfectly reflecting plane botton is filled with water `(mu=4//3)` to depth d. A point source of light is placed at a height h above the surface of water. Find the distance of final image from water surface.

Explanation

`v_(0)=-4m//s`
`v_(i//m)=-muv_(0)`
`v_(i//m)=+4//3xx4`
`v_(i//m)=+16//3` ltbr `v_(i//G)=(v_(i//m))/(mu)`
`v_(i//G)=(+16//3)/(4//3)=4`
`v_(i//G)=4-(-4)=8m//s`