Question

Which one of the following is the use of concave lens?

• A. Used in Optical Instruments
• B. Used as a camera lens
• C. Used in a projector
• D. Used in telescopes

Answer 1

The correct option is A

Used in Optical Instruments

Concave Lens:

1. A concave lens diverges a straight light beam from the source to produce a diminished, upright and virtual image.
2. Concave lenses have at least one curved surface on the inside.
3. In optical instruments, concave lenses are used.
4. Concave lenses are not used in the other options mentioned.

Hence, Option(A) is correct.