Lenses are used to form images by reflection in optical instruments.

The correct option is B False

1. Lenses are made by combining spherical surfaces.
2. The mirrors are formed out of a sphere by polishing one of its sides.
3. Thus, the mirrors reflect the incident light and an image is formed after reflection.
4. However, since a lens is a transparent material, it can form an image via refraction only.
5. The incident rays bend on passing through the lens and give a real or a virtual image.

Thus, the statement is false.