A Telescope with a Diameter of 2 M Is Just

Multiple Choice

A telescope with a diameter of 2 m is just barely able to resolve features on a gas cloud when observing it at 500 nm wavelength.Which of the following observations would also just barely be able to resolve these features?

A) a 1-m diameter telescope observing at 1,000 nm
B) a 4-m diameter telescope observing at 125 nm
C) a 4-m diameter telescope observing at 250 nm
D) a 1-m diameter telescope observing at 250 nm