Why Is It That with a Standard Transmission Electron Microscope

question 109

Multiple Choice

Why is it that with a standard transmission electron microscope, resolution is actually about two orders of magnitude less than its theoretical limit?

• A)The lenses of an electron microscope exhibit serious spherical aberration problems, which can be avoided by using a very small N. A.
• B)The lenses of an electron microscope exhibit serious spherical aberration problems, which can be avoided by using a very large N. A.
• C)If electron wavelength is too high, spherical aberration distorts the image.
• D)If electron wavelength is too low, spherical aberration distorts the image.

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