How far should an object be from a concave spherical mirror of radius 36 cm to form a real
image one-ninth its size?

How far must a girl stand in front of a concave spherical mirror of radius 120 cm to see an erect image of her face four times its natural size?

How far should an object be placed from a concave mirror of focal length 15 cm so as to get an image magnified two times?

What is the distance of an object from a concave mirror of focal length 20 cm so that the size of the real image is three times the size of the object ?

An object 5cm tall is palced 1m from a concave spherical mirror which has a radius of curvature of 20cm . The size of the image is

An object 5 cm tall is placed 1 m from a concave spherical mirror which has a radius of curvature of 20 cm. The size of the image is