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QUESTION
An array of radio telescopes working at a frequency 3GHz is to be used to observe a galaxy which lies at a distance of 600Mpc. What size of array would be needed to resolve features in the galaxy with
An array of radio telescopes working at a frequency 3GHz is to be used to observe a galaxy which lies at a distance of 600Mpc. What size of array would be needed to resolve features in the galaxy with dimensions of 3kpc? Could these features be resolved by a large ground-based optical telescope?
