Animal Life
Telescopes
Radio

Radio telescopes have poor resolving power because?

Answer

Wiki User
07/16/2010

"Poor" is really a woosy adjective.

If you're willing to express the size of the objective mirror in terms of wavelengths instead of

inches or meters or yards, then a radio telescope and an optical telescope with equal diameters

have equal resolving powers.

The familiar difference in their dimensions is simply the obvious consequence of the difference

in the wavelength of the signals they happen to be looking at. The shortest radio waves are

something like 2,000 times as long as the longest light waves.