The focal length of a lens depends on

The focal length of a lens depends upon

Does the focal length of a lens depend on the medium in which the lens is immersed? Is it possible for a lens to act as a conversing lens in one medium and a diverging lens in another medium?

Name two factors on which the focal length of a lens depends.

Does focal length of a lens depend on the colour often light used? Does focal length of a mirror depend on the colour?

Does focal length of a lens depend on the colour often light used? Does focal length of a mirror depend on the colour?

Does the focal length ofa lens depend on the medium in which the lens is immersed? Is it possible for a lens to act as aconverging lens in one medium and a diverging lens in another medium?

On what factors does the focal length of a lens depend?