Q. A compound microscope has two lenses. The magnifying power of one is 5 and the combined magnifying power is 100. The magnifying power of the other lens is
A) 10
B) 20
C) 50
D) 25
Explanation
(b) $m = m_{o} \times m_{e} \Rightarrow 100 = 5 \times m_{e} \Rightarrow m_{e} = 20$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.