Optics Question 359
Question: Least distance of distinct vision is 25 cm. Magnifying power of simple microscope of focal length 5 cm is
[EAMCET (Engg.) 1995; Pb. PMT 1999]
Options:
A) 1 / 5
B) 5
C) 1 / 6
D) 6
Show Answer
Answer:
Correct Answer: D
Solution:
In general, the simple microscope is used with image at D, hence $ m=1+\frac{D}{f}=1+\frac{25}{5}=6 $
