Question

Which is not a correct statement regarding ultraviolet radiation?

विकल्प

• They produce fluorescence in substances like zinc sulphide.

• They do not affect photographic plates.

• They are harmful to eyes.

• They produce vitamin D, when absorbed by skin.

Answer 1

They do not affect photographic plates.

Explanation:

Ultraviolet radiation affects photographic plates and can produce fluorescence. It can harm the eyes, while ultraviolet radiation absorbed by the skin helps the body produce vitamin D.