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A refractor has no obstacles in the image path which can cause diffraction. reflectors have "Spiders" (newtonians) and/or multiple optical elements which result in diffraction and lower respective image quality. both types have their advantages and disadvantages.
given any specific objective size, the refractor design is generally more expensive, and at a certain point (about 40"), refractors become infeasible due to the weight of the primary objective lens and the length of the tube. reflectors can, these days, be built to any dimension via multiple objective mirrors all controlled by computer to perfect alignment (well, within a reasonable degree of accuracy at least).
refractors are generally considered to be the instrument of choice for planetary viewing due to the pureness of the image path. reflectors are the instrument of choice for deep space and wide field viewing, due to the affordability of superior light gathering power of large mirrors vs smaller objective lenses for a given cost. a large folded reflector is far more portable than a large refractor, as well as more affordable.
so a determination of "which is better?" becomes dependent on what type of viewing you wish to do, how portable the system needs to be, and what your budget is.
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How many people built the hubble telescope?
More than 10,000 scientists built the Hubble Telescope. They were assigned to work on different parts of the Hubble Telescope.
Is the sun bigger than hubble telescope?
yes
Why is the hubble telescope better than other telescopes?
The Hubble Space Telescope is better than other telescopes because it is located in space, above Earth's atmosphere, which eliminates distortion caused by atmospheric turbulence. This allows for higher image resolution and clarity. Hubble also has a wide range of observational capabilities, including imaging in ultraviolet, visible, and near-infrared light.
Is Hubble telescope bigger than earth?
No. The Hubble Space Telescope was built on Earth and launched into space. It is about the size of a bus.
Why can the Hubble telescope see better than a telescope on earth?
Even in excellent weather, telescopes on Earth are affected by the thickness of the atmosphere. This causes the air to be slightly refractive, meaning that the air bents the light as it comes through the atmosphere, and distorts the image that we are trying to see.The Hubble Space Telescope is much smaller than many terrestrial telescopes, but because there is no atmospheric distortion, the images can be far clearer and can be magnified more.
Reflecting telescopes are popular because they're a more powerful than a refraction telescope b smaller than a refracting telescope c easier to build than a refraction telescope d more durable?
They can pack a lot of light gathering power into a more compact body. And Maksutov-Cassegrain Telescope does much better.
Is the Hubble telescope better than a ground-based telescope?
yes, because it doesnt have the atmosphere in the way, the atmosphere distorts the images taken by ground based-telescopes because of the refraction of light. The hubbles telescope can provide clearer and more accurate images without this barrier in the way.
What happens if the refraction angle is greater than ninety degrees?
This means no refraction occurs i.e. Total internal reflection (all light reflected) occurs
What is the difference between a reflecting telescope and a refracting telescope?
A reflecting telescope uses mirrors while refracting telescopes uses lens. The refracting telescope also had chromatic aberration and bad resolution while the reflecting telescope had none of these.
Why do you think the hubble telescope is better than a telescope on Earth?
it can see further.
What tajes place when the angle of incidence is smaller than the critical angle?
Refraction and partial internal reflection occurs
What is the minimum index of refraction for a glass or plastic prism to be used in binoculars so that total internal reflection occurs at 45 degrees?
The minimum index of refraction for total internal reflection at a 45-degree angle is 1.41. This means that the glass or plastic prism would need to have an index of refraction greater than or equal to 1.41 to achieve total internal reflection at that angle.
How reflection and refraction is used in real life situation?
Reflection is used in headlights of cars to increase visibility, while in photography, it is used to control the amount of light entering the camera. Refraction is used in eyeglasses to correct vision, and in lenses of telescopes and microscopes to focus light for magnification. Overall, both reflection and refraction play crucial roles in various daily life applications involving light manipulation.
As you look at an ordinary mirror at large angle you can often see more than one image why?
In addition to the primary image formed by one reflection off the back of the mirror, you may get images formed after two reflections and a total internal refraction: reflection off the back of mirror, refraction on inside of front surface of glass and reflection off back of the mirror. The refraction will only take place at a large angle.
Angle of refraction is less than 90 degree true or false?
False. You can have total internal reflection where the effective angle is greater than 90 deg
Most powerful telescope in the world?
it should be the hubble space telescope because it can see 10 times better than a normal telescope
What are three ways that waves change directions?
Reflection, refraction, and diffraction. Reflection is most common, when we see ourselves in the mirror. Refraction is evident when you insert a straw into a clear liquid (7-up, for example) and see the straw bend at the surface apparently. Diffraction is when light passes through a slit or opening, an interference pattern appears much wider than the slit on the other side.
