Find the position of an object which when placed in front of a concave mirror of focal length 20 cm, produces a virtual image which is twice the size of the object.

Find the position of an object which when placed in front of a concave mirror of focal length 20cm, produces a virtual image, which is twice the size of the object.

Find the position of an object, which when placed in front of a concave mirror of radius of curvature 40 cm produces a virtual image, which is twice the size of the object.

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

An object placed in front of a concave mirror of focal length 0.15 m produces a virtual image, which is twice the size of the object. The position of the object with respect to the mirror is

An object placed in front of a concave mirror of focal length 0.15 m produces a virtual image, which is twice the size of the object. The position of the object with respect to the mirror is

Find two positions of an object, placed in front of a concave mirror of focal length 15cm, so that the image formed is 3 times the size of the object.

An object is placed at a distance of 40 cm in front of a concave mirror of focal length 20 cm. The image produced is