Question

Which of the following two telescopes has a better angular resolution? 1) the Hubble Space Telescope (2.4 meter aperture) at optical wavelengths and 2) the Very Long Baseline Array (VLBA), a radio interferometer with a maximum baseline of 8600 km observing at 1 mm wavelengths. (Please answer with either HST or VLBA)

Answer 1

well, what is wavelength of visible light?
for resolution it is the ratio of wavelength to distance between slots that matters.
for your radio it is
1^10^-3 meters / .6*10^ m

the lower the wavelength to baseline, the sharper

Answer 2

Thank you!

Answer 3

THANKS