An air bubble is formed inside water. Does it act as a converging lens or a diverging lens ?

Is it possible for a given lens to act as a converging lens in one medium and a diverging lens in another medium?

Is it possible for a given lens to act as a converging lens in one medium, and as a diverging lens in another?

Is is possible for a given lens to act as a converging lens in one medium, and as a diverging lens in another?

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?

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?

A biconvex lens made of a transparent material of refractive index 1.33. Will the lens behave as a converging or a diverging lens ? Give reason.

An air bubble inside water broadly behaves as a concave lens. Is the true or false.

Assertion : Withing a glass slab, a double convex air bubble is formed. This air bubble behaves like a converging lens. Reason : Refrative index of air is more than the refractive index of glass.