The Focal Lengths of the Objective and the Eyepiece of a Microscope

question 72

Short Answer

The focal lengths of the objective and the eyepiece of a microscope are 0.50 cm and 2.0 cm,respectively,and their separation adjusted for minimum eyestrain (with the final image at the viewer's far point)is 6.0 cm.The near point of the person using the microscope is 25 cm and the far point is infinity.
(a)If the microscope is focused on a small object,what is the distance between the object and the objective lens?
(b)If the microscope is focused on a small object,what is its final magnification?

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