The parameter to be increased in order to increase the angular magnification of a simple microscope is
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → power of the lens
The angular magnification of a simple microscope is $M = \frac{25 \, \text{cm}}{f}$
To increase $M$, the focal length $f$ of the lens should be decreased, i.e., use a lens with higher power.
Final Answer: power of the lens