GIVE SCIENTIFIC REASON : A simple microscope is used for watch repairs.
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GIVE SCIENTIFIC REASON : A simple microscope is used for watch repairs.
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Answer:
A simple microscope is used by watch repairers because,a magnification of about 20 times is obtained by the convex lens of small focal length used in a simple microscope. Therefore, it is used by watch repairers to see the minute parts of the watch clearly without causing any strain to the eyes.