Solve the numerical problem
A convex mirror has a focal length of 18 cm. The image of an object kept in front of the mirror is half the height of the object. What is the distance of the object from the mirror?

A convex mirror has a focal length of 18cm. The image of an object kept in front of the mirror is half the height of the object. What is the distance of the object from the mirror?

A concave mirror of focal length 10 cm is used to obtain an image on a screen. The image is five times in height relative to the object. Find the distance of the object from the mirror.

An object is kept in front of a concave mirror of focal length 15 cm. The image formed is three times the size of the object. The two possible distances of the object are

Solve the numerical problem At what distance from a concave mirror of focal length 2.5 m should a boy stand so that his image is half his height?

A convex lens has a focal length of 30 cm. An object is kept in front of it at a distance of 90 cm. Find the distance of the image from the lens. What type of image is formed?

Solve the numerical problem A spherical mirror is used to obtain an Image on a screen. The height of the image is five times that of the object. What is the type of mirror and at what distance is the object Placed from the mirror?

A lens with a focal length of 25 cm produces real image of an object at a distance of 50 cm from the lens. At what distance the object placed from the lens?

Solve the numerical problem Swarali has a doll. She wishes to keep it in front of a convex mirror of focal length 18 cm such that the height of the image of the doll is half the height of the object. Where should she keep the doll? Help her to determine the position of the doll.

An image is formed 5 cm behind a convex mirror of focal length 10 cm. At what distance is the object placed from the mirror?