In order to increase the angular magnification of a simple microscope, one should increase

Question

In order to increase the angular magnification of a simple microscope, one should increase (A) the object size (B) the aperture of the lens (C) the focal length of the lens (D) the power of the lens

Tardigrade Admin · Accepted Answer

For least distance of distinct vision, the angular magnification of simple microscope is

M = 1 + \frac{D}{f}

\Rightarrow M = 1 + D P

(∴ Power (P) = \frac{1}{t})

and for normal adjustment

M = \frac{D}{f}

\Rightarrow M = D P

.
Hence, if the angular magnification of simple microscope increases, then the power of the lens should increase.

Q. In order to increase the angular magnification of a simple microscope, one should increase

the object size

the aperture of the lens

the focal length of the lens

the power of the lens

For least distance of distinct vision, the angular magnification of simple microscope is M=1+fD​ ⇒M=1+DP (∴Power(P)=t1​) and for normal adjustment M=fD​ ⇒M=DP. Hence, if the angular magnification of simple microscope increases, then the power of the lens should increase.