Question

question 5
what does resolving power measure?
the magnification of an image.
the angular size of an image.
the angular size of the smallest features that can be viewed with the telescope.
the number of electromagnetic waves captured by an image.
the size of an image.
the brightness of an image.

Explanation:

Resolving power is the ability to distinguish between two closely - spaced objects. It measures the angular size of the smallest features that can be viewed with an instrument like a telescope. Magnification is about making an image larger, angular size of an image is different from the smallest distinguishable features, number of electromagnetic waves captured is related to sensitivity, size and brightness of an image are also not what resolving power measures.

Answer:

The angular size of the smallest features that can be viewed with the telescope.