A radio telescope and an optical telescope of the same size have the same angular resolution.

Question

Quizplus · Accepted Answer

The angular resolution of a telescope is determined by the diameter of its aperture. Since radio waves have much longer wavelengths than visible light, a radio telescope would need to have a much larger aperture to achieve the same angular resolution as an optical telescope of the same size. Therefore, a radio telescope and an optical telescope of the same size would not have the same angular resolution.

A Radio Telescope and an Optical Telescope of the Same