Question

The image of an object form at the distance of distinct vision from the lens of a simple microscope of focal length 2.5 crn. Its magnifying power is

• A. 2.5
• B. 5
• C. 10
• D. 11

Answer 1

Answer: (D)

11

Since,object is placed at close focus point.so, the magnification is given by,

$M=\frac{25}{f}+1$

$M=\frac{25}{2.5}+1=10+1=11$

Hence, option D is correct.