Q. If a parallel beam of white light is incident on a converging lens, the colour which is brought to focus nearest to the lens is
A) Violet
B) Red
C) The mean colour
D) All the colours together
Explanation
(a) Focal length for violet is minimum
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.