What is meant by the pole of a spherical mirror?

What is meant by 1 F ?

What is meant by rust?

What is meant by electrons?

What is meant by groups?

What is meant by the molality of a solutin?

What is meant by an error?

What is meant by chelate effect ?

What is meant by Catenation?

If the object distance and image distance from the focus of a spherical mirror of focal length f be x and y respectively, then

The ratio of the focal length of spherical mirror to its radius of curvature is-