Yes, because it must be very large in order to attain the resolution of optical telescopes.
Object that only shine with radio waves and not in the visible spectrum an object hidden by dust that block visible light.
much larger.slightly larger.in space. Correct answer is MUCH LARGER. ;-)
Both types of telescope collect and focus electromagnetic radiation for observational purposes, the difference is their band of observed frequencies. Radio telescopes are used for the radio frequencies ( ~3km - ~30cm) while optical telescopes are used for frequencies closer to visible light ( ~0.7μm - ~0.4μm). Optical telescopes may also be able to detect infrared and ultraviolet light.
Radio telescopes and infra-red telescopes operate at longer wavelengths/lower frequencies than visible light. Ultraviolet telescopes operate at shorter wavelengths/higher frequencies than visible light.
They can detect radio waves, infrared radiation, ultraviolet radiation, x-rays, and gamma rays.
A radio telescope detects light in the form of radio waves and a refracting telescope detects light in the visible wavelengths
No.
Radio telescopes collect radio waves. Optical telescopes capture visible light waves.
-- The source may be one that emits electromagnetic energy in the radio portion of the spectrum but little or no visible light. -- There may be material in the way, such as dust or gas, that absorbs visible light but doesn't absorb radio energy.
As far as I know, there is no "optical radio telescope". There are, separately, optical telescopes (which work with visible light), and radio telescopes (which work with radio waves).
Object that only shine with radio waves and not in the visible spectrum an object hidden by dust that block visible light.
Radio Telescope observe light of a different wavelength then optical light. Radio waves have a longer wavelength then visible light. Some interstellar objects barley emit any light in the visible spectrum but emit a significant amount of radiation in the radio spectrum. Radio telescopes enable us to view objects which emit in the radio spectrum.
An optical telescope focuses and concentrates visible light; radio telescopes focus and concentrate electromagnetic radiation (which means, "light") in the radio part of the spectrum.
radio telescope detects radio waves and a light telescope views light waves.
They usually ARE used together, because astronomers want to see if there is anything visible at the same place as this bright radio source in the sky.
much larger.slightly larger.in space. Correct answer is MUCH LARGER. ;-)
Telescopes can be made to see in almost any part of the electromagnetic spectrum: visible light, infrared light, ultraviolet light, X-rays, or radio waves. The largest telescopes are those for radio waves - in Arecibo there is one with a diameter of 300 meters. I am not sure whether it is the largest, though.