The magnifying power of a compound microscope increases when - Vidyadip

MCQ

The magnifying power of a compound microscope increases when

A
The focal length of objective lens is increased and that of eye lens is decreased
B
The focal length of eye lens is increased and that of objective lens is decreased
C
Focal lengths of both objective and eye-piece are increased
✓
Focal lengths of both objective and eye-piece are decreased

✓

Answer

Correct option: D.

Focal lengths of both objective and eye-piece are decreased

d
( d)$m \propto \frac{1}{{{f_o}{f_e}}}$

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