Find the position of final image of an object O as shown in figure.

Answer

A, B, C, D

Explanation

For plane surface, `h_(app)=muh`
`=3/2xx10=15 cm`
This first image is at a distance, `(15+3) cm` from
the plane mirror. So, mirror will make its second
image at a distance `18 cm` below the mirror or
Now further applying,
`d_(app)=d/mu=21/1.5=14 cm`
below the plane surface.