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

Question

Quizplus · Accepted Answer

VLBI is a technique that combines data from multiple radio telescopes across the world, allowing for extremely high angular resolution. With VLBI, the maximum angular resolution obtainable is 0.00001 arc seconds, making choice A the correct answer. The other choices have lower maximum angular resolutions.

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