Question

Chromatic aberration produced by a concave mirror and a convex lens of same focal length will be

• A. Chromatic aberration is produced by convex lens as well as concave mirror
• B. Chromatic aberration produced by concave mirror is equal to chromatic aberration produced by convex lens
• C. Concave mirror will not produce chromatic aberration
• D. None of the above

Answer 1

The correct option is C Concave mirror will not produce chromatic aberration

Chromatic aberration in the convex lens is produced because of the referaction. Convex lens offers different focal length to the different colours of light.

But in case of concave mirror only reflection takes place.
Hence, focal length offered by the concave mirror for every colour of light is same.
Therefore, concave mirror (every mirror in general) will not produce chromatic aberration.

Hence, option $\left(c\right)$ is the correct answer.