Q. An equiconvex lens is cut into two halves along (i) $XOX'$ and (ii) $YOY'$ as shown in the figure. Let $f,\ f^{'},\ f''$ be the focal lengths of the complete lens, of each half in case (i), and of each half in case (ii), respectively. Choose the correct statement from the following
A) $f^{'} = 2f,\ f^{''} = f$
B) $f^{'} = f,\ f^{''} = f$
C) $f^{'} = 2f,\ f^{''} = 2f$
D) $f^{'} = f,\ f^{''} = 2f$
Explanation
(d)
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.