Answer:
The correct answer will be-
1. Light waves- beam of electrons used in electron microscope.
2. lenses- magnetic lenses of electron microscope.
3. Viewer's eye- image of electron microscope.
4. light source- electron gun of electron microscope.
Explanation:
The microscope is the optical instrument to see the microscopic objects clearly in an enlarged view. The most common microscopes are light and electron microscope.
These two microscopes can be compared easily as they have differences: the light waves are used in the light microscope to illuminate the objects which are the electron beam in the electron microscope which comes from the electron shotgun.
The light microscope uses lenses made of glass to see objects whereas the electron microscope uses magnetic lenses to magnify the images.
