Question

The image formed by a convex lens can be
(a) virtual and magnified
(b) virtual and diminished
(c) virtual and of same size
(d) virtual image is not formed

Answer 1

The image formed by a convex lens can be virtual and magnified (option a).

• The convex lens is a converging lens with a thick centre and narrow edges.
• Based on the position of an object and its distance from the centre of optical curvature, the image generated by a convex lens might be real or virtual, enlarged or diminished, and erect or inverted.
• When an object is put between the principal focus, F1, and the optical centre, O, of a convex lens, the image formed is the virtual and magnified image.
• The image generated has the following properties:

1. Virtual Image
2. Erect
3. Enlarged
4. Same side of convex lens

Answer 2

Image formed by a convex lens is (a) virtual and magnified.  

What is a convex lens?

• Convex lens is a converging lens.
• It converges ray of light that is incident on the lens on the principal axis.
• Convex lens is wider at the centre and narrow at the edges.

Nature of image:

• Images formed are mainly real in nature. Real image formed by convex lens can  be diminished or enlarged.
• When object is placed between focus and pole, then the image is virtual and magnified.
• Virtual image is formed behind the mirror and is erect in nature.