Resolving power is measured in nanometers.

Question

Quizplus · Accepted Answer

Resolving power, or resolution, refers to the ability of an optical instrument to distinguish between two points that are close together, and it is typically measured in terms of the smallest distinguishable feature size, not in nanometers directly. The unit of measurement for resolving power depends on the context, such as cycles per millimeter in imaging systems, or the Rayleigh criterion in optical systems, which is often expressed in terms of angular separation. Nanometers may describe the size of features being resolved but not the resolving power itself.

Resolving Power Is Measured in Nanometers