Question

question 2
two stars are separated by 0.5 arcseconds. candys telescope has an angular resolution of 0.3 arcseconds. billys telescope has an angular resolution of 0.8 arcseconds.
if both of them photograph the stars, which photograph will show two stars?
neither of them
both of them
candys
billys

Explanation:

Step1: Understand angular - resolution concept

A telescope can resolve two objects if the angular separation between the objects is greater than or equal to the telescope's angular resolution.

Step2: Compare angular separation and resolutions

The angular separation between the two stars is 0.5 arcseconds. Candy's telescope has an angular resolution of 0.3 arcseconds. Since 0.5 > 0.3, Candy's telescope can resolve the two stars. Billy's telescope has an angular resolution of 0.8 arcseconds. Since 0.5 < 0.8, Billy's telescope cannot resolve the two stars.

Answer:

Candy's