Under what condition, a concave lens can make a real image.

Under what conditions a concave lens can behave as a converging lens?

Can a concave lens produce a real image?

Under what condition can a convex lens form a virtual image?

Under what conditions will a convex lens have a negative and a concave lens a positive power?

Under which of the following conditions a concave mirror can form a real image larger than the actual object ?

Under which of the following conditions a concave mirror can form a real image larger than the actual object ?

A real image is formed by a convex lens. Then it is put in contact with a concave lens and again a real image is formed. This image will

A real image is formed by a convex lens. Then it is put in contact with a concave lens and again a real image is formed. This image will shift towards the lens system shift away from the lens system remain in its original position shift to infinity