A concave mirror of focal length 8 cm forms an inverted image of an object placed at a certain distance. If the image is twice as large as object, where is the image formed ?

A concave mirror of focal length 8cm produces a real image of size 4cm when an object 2cm high is placed at a certain distance from the mirror . Find the position of the image and the object.

A concave mirror of focal length 15 cm forms an image twice the size of the object. If the image is virtual, the distance of object is

An concave mirror of focal length 30 cm forms an image of double of the height of object. If the image is real then the distance of the object from image is

A concave mirror forms image inverted and equal in size, when object is placed at…… .

A concave lens of focal length (1)/(3)m forms a real, inverted image twice in size of the object. The distance of the object from the lens is

An object of height 1.2 m is placed before a concave mirror of focal length 20 cm so that a real image is formed at a distance of 60 cm from it. Find the position of the object ? What will be the height of image formed ?

Image formed by a concave mirror of focal length 6 cm , is 3 times of the object, then the distance of object from mirror is