To increase the angular magnification of a simple microscope, one… - Vidyadip

MCQ

To increase the angular magnification of a simple microscope, one should increase:

A
The focal length of the lens.
✓
The power of the lens.
C
The aperture of the lens.
D
The object size.

✓

Answer

Correct option: B.

The power of the lens.

For a simple microscope in normal adjustment, the object is placed at a distance equal to $f ($the focal length$)$ from the lens, And the angular magnification is given by the relation
$\text{m}=\frac{\text{D}}{\text{f}}$
for $\text{u}<\text{f},\text{m}=\frac{\text{D}}{\text{f}}+1$
power of lens $=\frac{1}{\text{f}}$
Angular magnification depends on power.

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