Q. In Huygen’s eyepiece
A) The cross wires are outside the eyepiece
B) Condition for achromatism is satisfied
C) Condition for minimum spherical aberration is not satisfied
D) The image formed by the objective is a virtual image
Explanation
(b) Huygen eyepiece satisfies the conditions for elimination of the chromatic aberration as well as spherical aberration.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.