Question

Reeta asked her teacher that which materials cannot be used to make a lens? What will be the answer given by

teacher to her?​

Answer 1

The most probable answer of her teacher is as follows -

• The opaque materials cannot be used to make a lens.

• For the occurrence of the refraction activities by an optical lens,the light rays have to pass through the lens which is only possible when the lens is transparent.

• The lens which is made out of opaque materials will block the entrance of the light rays and the necessary refraction activities of lens will not happen anymore.