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A person with a normal near point (25 cm...

A person with a normal near point `(25 cm)` using a compound microscope with an objective of focal length `8.0 mm` and eye piece of focal length `2.5 cm` can bring an object placed `9.0 cm` from the objective in sharp focus. What is the separation between the two lenses ? Calculate the magnifying power of the microscope ?

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Angular magnification of the eye-piece for image at 25cm
`=(25)/(2.5)+1=11, |u_(e)|=(25)/(11)cm=2.27cm, v_(o)=7.2cm`
Separation = 9.47 cm, Magnifying power = 88
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