Atomic force microscopes (AFMs) are highly sensitive tools used to observe and measure surfaces at the nanoscale. The correct observations that can be made with atomic force microscopes include:
- Things the size of a human cell. AFMs can resolve features on the surface of biological cells, typically in the range of micrometers to nanometers.
- Things that are atomic in size. AFMs can achieve atomic resolution and can be used to study individual atoms and small clusters on surfaces.
AFMs are not suitable for observing things that are the size of the galaxy or planets, as these are significantly larger scales than what AFMs are designed to analyze.
In summary, AFMs are primarily used for observing and measuring structures on the nanoscale (atomic size) and up to micrometer scale (like human cells).
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