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(D) The angular magnification $(m)$ of a simple microscope is given by the formula $m = 1 + \frac{D}{f}$,where $D$ is the least distance of distinct v

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Power of lens

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(D) The angular magnification $(m)$ of a simple microscope is given by the formula $m = 1 + \frac{D}{f}$,where $D$ is the least distance of distinct vision and $f$ is the focal length of the convex lens.Since the power of a lens $(P)$ is defined as $P = \frac{1}{f}$ (in meters),we can rewrite the magnification as $m = 1 + D \cdot P$.From this relation,it is clear that the angular magnification $m$ is directly proportional to the power of the lens $P$.Therefore,increasing the power of the lens increases the angular magnification.

Column-$I$	Column-$II$
$A$. Christmas tree	$i$. Bennettites
$B$. Fossil plant	$ii$. Cycas
$C$. Ornamental plant	$iii$. Araucaria
$D$. Tallest tree	$iv$. Sequoia
	$v$. Thuja

The angular magnification of a simple microscope can be increased by increasing

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