Microscope!

Classical Mechanics Level 4

The focal lengths of the eye-piece and the objective of a compound microscope are $$5\text{ cm}$$ and $$1\text{ cm}$$ respectively and the length of the tube is $$20\text{ cm}.$$ Calculate the magnifying power of the microscope, when the final image is formed at infinity. The value of least distance of distinct vision is $$25\text{ cm}.$$

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