Which could be a disadvantage of a thin or “floppy” telescope mirror? It tends to sag under its own weight.
What is a disadvantage of radio telescopes compared to optical telescopes?
What is a disadvantage of radio telescopes compared to optical telescopes? -Radio photons have lower energy, thus radio waves have low intensity. … -Which is not a reason to choose a reflector over a refractor when building a large telescope with limited funds?
What are the disadvantages of radio telescopes?
The advantage of radio telescopes is that they can be used in cloudy weather since radio waves can pass through clouds. The disadvantage of these instruments is that they need a large collecting area which means that they are expensive to construct. Telescopes are instruments that can magnify electromagnetic radiation.
Which is the reason that radio telescopes are often put in valleys?
Optical astronomers hope to get above as much of the atmosphere as possible. For radio astronomers, interference from man-made radio signals is a major problem. Putting a radio telescope in a deep valley may shield it from such interference.
Are there any advantages to using smaller telescopes?
Physical Size. Size can be both an advantage and a disadvantage for optical telescopes. … The disadvantage is that the smaller optical telescopes cannot gather as much light, so they are not very powerful if you seek more distant objects like galaxies and nebulae.
What is the disadvantage of radio?
Like any other medium, radio too has certain limitations. These include lack of a visual element, audience fragmentation, limited research data, limited listener attention, and clutter.
What is one disadvantage of using optical astronomy to study the Universe?
What is one disadvantage of using optical astronomy to study the universe? Optical astronomy images get distorted due to dust. Optical astronomy cannot be used to capture the images of galaxies. … Optical astronomy cannot capture radiations of longer wavelengths.
What are disadvantages of radio waves?
A disadvantage for radio waves is that it has low frequency so it can’t transmit (send) a lot of data at one time.
What are the negative effects of radio waves?
RF radiation has lower energy than some other types of non-ionizing radiation, like visible light and infrared, but it has higher energy than extremely low-frequency (ELF) radiation. If RF radiation is absorbed by the body in large enough amounts, it can produce heat. This can lead to burns and body tissue damage.
What are the advantages of using a radio telescope instead of a reflecting or refracting telescope?
Although they are usually very large and expensive, these telescopes have an advantage over optical telescopes. They can be used in bad weather because the radio waves are not blocked by clouds as they pass through the atmosphere. Radio telescopes can also be used in the daytime as well as at night.
Which of the following is the biggest disadvantage of putting a telescope in space?
Which of the following is the biggest disadvantage of putting a telescope in space? Space telescopes are much more expensive than similar ground-based telescopes.
What are the advantages of making a telescope mirror thin What problems result?
Advantage is that it’s lighter, but thin mirrors distort images less and have a lesser weight. If the mirror isn’t very thin, you can expect your image to be distorted and it can take longer to achieve the image you want or need. You just studied 6 terms!
Why do radio telescopes have poor resolving power?
Radio telescopes have poor resolving power because radio waves have a long wavelength. The wavelength of radiowaves is often thousands of times longer…
Which of the following is a disadvantage of optical telescopes?
What are disadvantages or refracting telescopes? The image is upside down, they are made of glass, and chromatic aberration is a problem. What is a spectroscope?
What advantages do large telescopes have over smaller telescopes?
What are two advantages of large scopes over smaller ones? Large telescope have more light grasp and better resolution. This design involves only one optical surface, a concave mirror. You just studied 76 terms!
Which of the following is a disadvantage of a large refracting microscope?
Disadvantages. All refractors suffer from an effect called chromatic aberration (“color deviation or distortion”) that produces a rainbow of colors around the image.