Focal length of a concave mirror is

The focal length of a concave mirror in vacum is 2 m. What will be the focal length of the concave mirror in a medium of refractive index 2.76?

A concave mirror is a part of sphere of radius 20 cm, the focal length of concave mirror is :

Explain an experiment to determine the focal length of a concave mirror by u-v method.

What is the focal length of a concave mirror of radius of curvature 16.0 cm?

If the focal length of a concave mirror be 15cm then what is its radius of curvature?

The focal length of a concave mirror with radius of curvature 12 cm is

Obtain the relation between radius of curvature and focal length of a concave mirror with necessary ray diagram.

In order to determine the focal length of a concave mirror by obtaining the image of distant object on screen, the position of screen should be

In an experiment to find focal length of a concave mirror a graph is drawn. The graph looks like ...........