What is the radius R of a concave spherical mirror at a distance of a=2 meters from the face of a man if he sees in it his image that is one and a half times greater than on a flat mirror placed at the same distance from the face?

The distance of an object from a concave spherical mirror is equal to the focal length of the mirror. Then the image.

A concave mirror forms an image of the sun at a distance of 12 cm from it.

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

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

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

You are standing at a distance 2 metre from a plane mirror. What is the distance of your image from the mirror ?

A man uses a concave mirror for shaving. He keeps his face at a distance of 25 cm from the mirror and gets an image which is 1.4 times enlarged. Find the focal length of the mirror

A point source of light S is placed on the major optical axis of the concave mirror at a distance of 60 cm. At what distance from the concave mirror should a flat mirror be placed for the rays to converge again at the point S having been reflected from the concave mirror and then from the flat one? Will the position of the point where the rays meet change if they are first reflected from the flat mirror? The radius of the concave mirror is 80 cm.

An object is placed in front of a concave mirror at a distance of 7.5 cm from it. If the real image is formed at a distance of 30 cm from the mirror, find the focal length of the mirror. What would be the focal length if the image is virtual.

A man uses a concave mirror for shaving. He keeps his face at a distance of 20cm form the mirror and gets an image which is 1.5 times entarged. Find the focal length of the mirror.