Between which two points of concave should an object be placed to obtain a magnification of :
(a) -3, (b) +2.5, (c ) -0.4

Between which two points of a concave mirror should an object be placed to obtain a magnification of -3?

Between which two points of a concave mirror should an object be placed to obtain a virtual magnified image?

When an object is placed at a distance of 60 cm from a convex mirror, the magnification produced is 1/2. Where should the object be placed to obtain a magnification of 1/3?

When an object is placed at a distance of 60 cm from a convex spherical mirror, the magnification produced is (1)/(2) . Where should the object be placed to get a magnification of (1)/(3) ?

A 20 D lens is used as a magnifier. Where should the object be placed to obtain maximum angular magnification? (Given, D=25 cm).

A 20 D lens is used as a magnifier. Where should the object be placed to obtain maximum angular magnification? (Given, D=25 cm).

The magnification of an object placed in front of a convex lens is +2 . The focal length of the lens is 2.0 metres. Find the distance by which object has to be moved to obtain a magnification of -2 (in metres).

The magnification of an object placed in front of a convex lens is +2 . The focal length of the lens is 2.0 metres. Find the distance by which object has to be moved to obtain a magnification of -2 (in metres).