MCQ
When the length of a microscope tube increases, its magnifying power
- ✓Decreases
- BIncreases
- CDoes not change
- DMay decrease or increase
✓
Answer
Correct option: A.
Decreases
a
(a) For a microscope $|m|\; = \frac{{{v_o}}}{{{u_o}}} \times \frac{D}{{{u_e}}}$ and $L = {v_o} + {u_e}$
For a given microscope, with increase in $L,$ $u_e$ will increase and hence magnifying power $(m)$ will decrease.
(a) For a microscope $|m|\; = \frac{{{v_o}}}{{{u_o}}} \times \frac{D}{{{u_e}}}$ and $L = {v_o} + {u_e}$
For a given microscope, with increase in $L,$ $u_e$ will increase and hence magnifying power $(m)$ will decrease.
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