Question

question 43
2 pts
what is the primary reason that a modern transmission electron microscope (tem) can resolve biological images as small as 2 nm, whereas 200 nm is the limit of resolution for a light microscope?
diffraction of light by a light microscope distorts the image.
contrast is enhanced by staining with atoms of heavy metal.
electron beams have much shorter wavelengths than visible light.
tem is used to visualize very thin sections of cells.

Explanation:

The resolving power of a microscope is related to the wavelength of the radiation used. Shorter - wavelength radiation allows for higher resolution. Electron beams in TEM have much shorter wavelengths than visible light used in light microscopes, enabling TEM to resolve much smaller structures.

Answer:

Electron beams have much shorter wavelengths than visible light.