Question: A cub scout makes a microscope by placing two converging lenses of +18 D at opposite ends of a 28 cm long tube. (a) What

A cub scout makes a microscope by placing two converging lenses of +18 D at opposite ends of a 28 cm long tube.

(a) What is the tube length of the microscope? 

(b) What is the angular magnification? 

(c) How far should an object be placed from the objective lens?

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