Exam-style question
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Why can electrons be used for microscopy instead of visible light?.
Model answer
What a good answer should say
- Electrons can be used for microscopy because they have much shorter wavelengths than visible light.
- This shorter wavelength allows for higher resolution imaging, enabling the observation of smaller structures at the atomic level.
Explanation
Why this works
This answer is strong because it clearly identifies the cause (shorter wavelengths of electrons), explains the mechanism (higher resolution due to shorter wavelengths), states the effect (ability to observe smaller structures), and describes the consequence (observation at the atomic level). The question tests understanding of the principles behind electron microscopy.
Common mistake
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