Why Do Electron Microscopes Have a Better Resolution Versus Light

question 44

Multiple Choice

Why do electron microscopes have a better resolution versus light microscopes?

• A) The lenses, knobs, and strength of the electron beam can all be highly controlled, which also explains why electron microscopes are so expensive.
• B) An electron beam has a wavelength of about 800 nm, and resolution improves with larger wavelengths.
• C) An electron beam has a wavelength of about 1 nm, and resolution improves with smaller wavelengths.
• D) The additional steps necessary to prepare the sample for viewing provide the improved resolution.
• E) The lenses used to focus the electron beam are more adjustable than the ones in a light microscope.

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