Question

A lens is called a thin lens if it's overall thickness is

• A. small
• B. large
• C. infinitely large
• D. none of these

Answer 1

The correct option is A

small

Explanation

1. A thin lens is one in which the thickness of the lens is substantially smaller than the diameter of the lens.
2. Diverging lenses are thicker at the edges than they are in the middle.
3. While convergent lenses are thicker near the edges than they are in the middle.

So, the correct answer is (A) small.