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A compound microscope consists of a 20X eyepiece and a 100X objective, and has a standard tube length L = 160 mm. The microscope is designed for a user with normal vision, i.e. with a near point of 25 cm.

The microscope is used to image a cell of size 5.5 µm

1) Calculate the total angular magnification of the microscope - 2000

2-What is the focal length of the eyepiece?
3-What is the focal length of the objective?
4-What would the angular size of the cell, θunaided, be in radians if viewed with the unaided eye from a near-point distance?
5-What is the angular size of the cell as viewed through the microscope θaided, in radians?

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