Answer:
The plant is placed at 2.22 cm on left hand side of the mirror.
Step-by-step explanation:
Distance of the object from the mirror = u
Distance of an image from the mirror = v = 4.0 cm
Radius of the Curvature of the mirror ,r= 10 cm


1 ) v = +4.0 cm (Image is on the other side)

u = -2.22 cm
2) v = -4.0 cm (Image is on the same side)

u = 20 cm (not possible)
So, the distance of plant from the mirror is 2.22 cm