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Q 9.26 Answer the Question?
(d) Why must both the objective and the eyepiece of a compound microscope have short focal lengths?
Answers (2)
We need more magnifying power and angular magnifying power in a microscope in order to use it effectively. Keeping both objective focal length and eyepiece focal length small makes the magnifying power greater and more effective.
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Short focal length leads to larger magnification of both the lenses. This increases the magnifying power/ angular magnification of the microscope.
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