Space telescope A has a diameter of 2.4 metres; space telescope B has a diameter of 6.5 metres. If they take pictures with the same wavelength of light, which telescope will be better able to make separate images of two stars close together on the sky?
A) Telescope A will do better.
B) Telescope B will do better.
C) Neither one; if they work at the same wavelength, they will give the same results.
D) Neither one; even in space, telescopes cannot separate objects that are near each other.

Question

Quizplus · Accepted Answer

Telescope B will do better because its larger diameter allows for better angular resolution, enabling it to more effectively separate images of two stars close together on the sky.

Space Telescope a Has a Diameter of 2