What is the maximum angular resolution (sharpness of the image) obtainable with radio telescopes on Earth?
A) 0.00001 arcsecond using the worldwide very long-baseline interferometry (VLBI) array of telescopes
B) 100 arcseconds using the 305-m Arecibo telescope in Puerto Rico
C) 0.0001 arcsecond using the very long-baseline array of telescopes extending across the United States and including Hawaii
D) 0.1 arcsecond using the 27-dish very large-array (VLA) of radio telescopes at Socorro, New Mexico

Question

Quizplus · Accepted Answer

The maximum angular resolution obtainable with radio telescopes on Earth is 0.00001 arcsecond using the worldwide very long-baseline interferometry (VLBI) array of telescopes. This technique combines observations from multiple radio telescopes spread across the globe to simulate a telescope with a diameter as large as the separation between the facilities, achieving extremely high angular resolution.

What Is the Maximum Angular Resolution (Sharpness of the Image)