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 from a concave spherical mirror of radius 36 cm to form a real image one-ninth its size?

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

An object is placed at a large distance in front of a concave mirror of radius of curvature 40 cm. The image will be formed in front of the mirror at a distance of :

At what distance in front of a concave mirror of focal length 10 cm, an object be placed so that its real image of size five times that of the object is obtained?

An object of height 5 cm is placed 2 m in front of a concave mirror of radius of curvature 40 cm. The size of 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

A shaving mirror is used to see the enlarged view of the face while shaving. It is a concave spherical mirror. How far the shaving mirror should be placed to see the face magnified to thrice ? The focal length of the mirror is 10 cm.