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The Distance Between the Object and the Eyepiece of a Compound

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The distance between the object and the eyepiece of a compound microscope is 25.0 cm.The focal length of its objective lens is 0.200 cm and the eyepiece has a focal length of 2.60 cm.A person with a near point of 25.0 cm and a far point at infinity is using the microscope.
(a)What is the angular magnification obtainable using the eyepiece alone as a magnifying lens if the final image is at the person's far point?
(b)What is the total magnification of the microscope when used by the person of normal eyesight?


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