An object infront of a concave mirror of focal length f. A virtual image is formed with a magnification of 2. To obtain a real image of same magnification the object has to be moved by a distance

If an object is placed 10 cm infront of a concave mirror of focal length 20cm, the image will be

A small object is so placed in front of a convex lens of 5cm focal length that a virtual image is formed at a distance of 25 cm. Find the magnification.

Where should an object be placed in front of a concave mirror of focal length 15 cm to have a magnification of 3 in case of (a) real image (b) virtual image ?

Can a concave mirror form a virtual image of same size as the object?

Distance of an object from a concave lens of focal length 20 cm is 40 cm. Then linear magnification of the image

Calculate the distance of an object of height h from a concave mirror of focal length 10 cm so as to obtain a real image of magnification 2 .

A concave mirror of focal length f produces a real image n time the size of the object.What is the distance of the object from the mirror.

An object is placed in front of the concave mirror of focal length f. The magnification of the image became twice when the object distance is changed from 20 cm to 11 cm. Calculate the value of f.