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Why doesnt the surface of a radio telescope have to be as flawless as the surface of a mirror in an optical telescope?

The surface of a radio telescope doesn't have to be as flawless as the surface of an optical telescope because the radio telescope is collecting radio waves, something that will not be affected by faults in the glass. Optical telescopes, on the other hand, are collecting light, where faults in the surface can interfere with the image.


How are the telescopes Keck I and Keck II different from radio telescope?

They are optical telescopes.


What rason could you give for placing an opical telescope into orbit instead of a radio telescope?

I can think of two big reasons right off the top of the bat:1). Radio signals are influenced by a trip through the atmosphere much less thanoptical ones are, so the downside of observing them from the surface is far less.2). Radio telescopes operate at wavelengths that are perhaps 15,000 times thewavelengths at which optical instruments do. So for comparable sensitivity andresolution, a radio telescope has to be 15,000 times the size of an optical one.Armed with this fact, your average Congressperson is not likely to support theprogram to fund a proposed Jansky Space Radio Telescope.


Group of radio telescopes radio telescope array radio astronomy?

Radio Telescope Arrays


How is the VLA similar to an optical telescope?

well,both telescopes let you look into the ground into the inner core and you see deep in he atmosphere which is space. Errr... The Very Large Array is an array of radio-telescopes, i.e. it detects radio emissions from stars and similar. An optical telescope as its name suggests, collects visible light. The similarity is that increasing the aperture increases the radiation-gathering power by a square-law. In an optical telescope this is achieved by a larger mirror (or lens but most large telescopes are reflecting.) The VLA uses a "synthetic aperture" to gain the advantages of increasing its gathering area without the cost and complexity of building a single, very large dish.

Related Questions

Is the image produced by a radio telescope the same as the image produced by a optical telescope Explain.?

No, the images produced by a radio telescope and an optical telescope are not the same. Optical telescopes capture visible light and produce images that resemble what we see with the naked eye, revealing details of celestial objects in visible wavelengths. In contrast, radio telescopes detect radio waves, which can provide different information about astronomical objects, often revealing structures and phenomena that are invisible in optical wavelengths. The resulting images from both types of telescopes represent different aspects of the universe and require different methods of interpretation.


Why doesnt the surface of a radio telescope have to be as flawless as the surface of a mirror in an optical telescope?

The surface of a radio telescope doesn't have to be as flawless as the surface of an optical telescope because the radio telescope is collecting radio waves, something that will not be affected by faults in the glass. Optical telescopes, on the other hand, are collecting light, where faults in the surface can interfere with the image.


How do radio telescope different from optical telescope?

Radio telescopes collect radio waves. Optical telescopes capture visible light waves.


How do radio telescope operate?

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).


How can you gaze into space?

Usually, by using your eye sight, optical telescope, or radio telescope.


How is an optical telescope different from the others?

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.


Instrument used in studying heavenly bodies?

Optical or radio telescope


What are types of space telescope?

Gamma, X-ray, Optical, and Radio


What type of electromagnetic radiation is detected by an optical telescope?

Radio Waves


Is there a telescope in Cardiff?

There is a 3 metre radio telescope on the roof of Cardiff University. There is also an optical telescope at the site for the use of undergraduates.


Why do non optical telescopes work better on earth?

They don't. All earth bound telescopes, optical or not, must deal with a number of issues. But what do you mean by "better"? A radio telescope is better suited to pick up radio waves than an optical telescope, but an optical telescope is better for visible light. They each serve their purpose better than the other.


How are the telescopes Keck I and Keck II different from radio telescope?

They are optical telescopes.