True or False: A microscope uses two convex lenses with relatively short focal lengths.?

Question

True or False: A microscope uses two convex lenses with relatively short focal lengths.?

Answer 1

False.  A microscope is an instrument that magnifies a small object.  A simple microscope in its simplest form consists of a single converging (positive) lens, like a magnifying glass.

A compound microscope uses two positive groups of lenses.  (Two single convex lenses would not form a useful image.)  Each of these lenses (eyepiece and objective) will contain both convex and concave lens elements.

Answer 2

True. The microscope uses the magnifying powers of two convex lenses to produce a magnified image of a very small object. A powerful microscope uses short focal lengths.

This website should help.

http://arnica.csustan.edu/boty3100/micro...

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