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Answer the following questions: Why must...

Answer the following questions: Why must both the objective and the eyepiece of a compound microscope have short focal lengths?

Text Solution

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The magnifying power of a compound microscope is given by
`M=(L)/(f_(o)) (1+(D)/(f_(e )))`,
where the letters have thier usual meanings. Obviously, M will have a large value, if both `f_(e )` and `f_(o)` are small.
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