An object is kept at a distance of 0.3 m from a concave mirror. If magnification is `(1)/(2)` , then determine the focal length of the concave mirror.

Focal length of a concave mirror is

Focal length of a concave mirror is

An object is kept at a distance of 60 cm from a concave mirror. For getting a magnification of (1)/(2) , Focal length of the concave mirror required is

An object is kept at a distance of 60 cm from a concave mirror. For getting a magnification of 1/2 , focal length of the concave mirror required is

An object at a distance of 30 cm from a concave mirror gets its image at the same point. The focal length of the mirror is

Assume that an object is kept at a distance of 20 cm in front of a concave mirror. If its focal length is 30 cm then What is the magnification of mirror in this case ?

When an object is placed at 75 cm in front of a concave mirror, the magnification produced by the mirror is ( - 0.5). Find the focal length of the mirror.