In what ways are the refracting telescope and reflecting telescope different?

The difference between Reflecting and Refracting Telescopes is that a reflecting telescope has a single or a combination of curved mirrors in order to reflect the light rays and form an image. On the other hand, an refracting telescope has a lens as its objective lens to form an image.

What are the different types of refracting telescopes?

A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope). The refracting telescope design was originally used in spyglasses and astronomical telescopes but is also used for long-focus camera lenses.

What are three problems with refracting telescopes?

Terms in this set (5)

• Chromatic aberration (blue light is refracted most)
• Any bubbles and impurities in the glass absorb some of the light, which means that very faint objects aren’t seen.
• Building large lenses that are of a sufficiently good quality is difficult and expensive.

How are reflecting telescopes different from refracting telescopes Brainpop?

How are reflecting telescopes different than refracting telescopes? Reflecting telescopes collect radio waves. Reflecting telescopes only have one opening. Reflecting telescopes use a mirror instead of a lens.

What is the difference between a reflecting and a refracting telescope quizlet?

The major difference is that a refracting telescope uses convex lens to focus light. A reflecting telescope has a curved mirror in place of the objective lens.

Which of the following is a major problem with reflecting telescopes?

Reflecting telescopes have a few disadvantages as well. Because they are normally open, the mirrors have to be cleaned. Also, unless the mirrors and other optics are kept at the same temperature as the outside air, there will be air currents inside the telescope that will cause images to be fuzzy.

What is one problem with refracting telescopes?

One problem with refracting telescopes is that there is a frequency dependence for refraction, so the amount of refraction at each surface of the lens depends on the wavelength. Thus, different wavelengths focus at slightly different points.

What is the main advantage for using a reflecting telescope as opposed to a refractor?

Reflecting telescopes have many advantages over refracting telescopes. Mirrors don’t cause chromatic aberration and they are easier and cheaper to build large. The are also easier to mount because the back of the mirror can be used to attach to the mount.

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