True
Radio waves have the longest wavelengths of the electromagnetic spectrum, and the lowest energy (or frequency). Radio waves pick up where microwaves leave off. This light has wavelength a few centimeters and longer.
Microwaves have a long wavelength, though not as long as radio waves. ... The longer wavelengths (waves more similar to radio waves) pass through the Earth's atmosphere more easily than the shorter wavelength microwaves. Microwave telescopes need to be large, but not as large as radio telescopes.
