When an object is placed 15cm from a lens, a virtual image is formed. Mark the correct statements.

Options

A. The lens may be convex or concave
B. If the lens is diverging, the image distance has to be less than 15cm
C. If the lens is converging, then its focal length has to be greater than 15cm
D. All of the above

Answer

d.

Explanation

Both the lenses (convex or concave)form virtual image of a real extended object. In both the cases, image would be erect.
For convex lens, virtual image will form when object is in-between focus and optical center.
For concave lens, virtual image will form for any location of object, and corresponding image is lying between focus and optical center.