How can you determine the apparent magnification of an optical telescope? Find the ratio of the angle at which the image

How can you determine the apparent magnification of an optical telescope? Find the ratio of the angle at which the image is observed to the angular size of the object when viewed directly with the eye

or Compare the size of an object observed with the naked eye and the size of the same object observed through a telescope. The magnification of the object will be the magnification of the telescope.

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