Astronomy Chapter 5 Telesopes

This design involves only one optical surface, a concave mirror.

The thickest lenses deflect and bend light

The main reason that most professional research telescopes are reflectors is that:

Which design was a primary mirror and flat secondary mirror, with the eyepiece located on the top side of the telescope tube?

Why are most large telescopes reflectors, not refractors?

What is the primary purpose of an astronomical telescope?

The secondary mirror in this design focuses light down through a hole cut in the concave primary mirror.

A major advantage of a Newtonian reflector over a refractor is:

The process occurring when photons bounce off a polished surface is called:

The tendency of a wave to bend as it passes from one transparent medium to another is called:

Which design is subject to chromatic aberration?

Which type of telescope has the simplest light path?

The angular resolution of an 8 inch diameter telescope is ___ greater than that of a 2-inch diameter telescope.

A telescope with a 60 mm objective lens collects how many times as much light as does your eye's 6 mm exit pupil?

Which method of astronomical measurement is the precise measurement of brightness?

What is the resolving power of the telescope?

The amount of diffraction and thus the resolution of the scope depends upon:

The diffraction that limits the ___ of a telescope of a given objective diameter.

The amount of diffraction a telescope creates depends upon:

What type of telescope if the Hubble Space Telescope?

How much better resolution would a 60 mm objective lens have than your eye's 6 mm exit pupil?

What are two advantages of large scopes over smaller ones?

Diffraction is the tendency of light to:

What is the light-gathering power of an 8 inch telescope compared to a 4-inch telescope?

Which of these devices helps correct coma in fast reflectors?

Green light has a shorter wavelength than orange light. In a 5 inch telescope, green light will:

What problem does adaptive optics correct?

What is "seeing"?

Which method of astronomical measurement is the precise measurement of brightness?

The most important advantage of CCDs over film is that:

One advantage of the Hubble Space telescope over ground based ones is that:

Refractor telescopes suffer from this separation of light into its component colors.

A mountain top is an especially good site for infrared telescopes since:

In astronomy, an interferometer can be used to:

This design combines the radiation from two different telescopes to greatly enhance resolution via computer synthesis:

Compared to optical telescopes, radio telescopes are built large because:

The Arecibo radio telescope is laid out like which optical telescope design?

In which part of the electromagnetic spectrum have astronomers been unable to get any information?

What is true of radio telescopes?

The design of modern X-ray telescopes depends on:

The Chandra X-ray telescope must use:

Which of the following greatly improves the angular resolution of radio maps?

Radio dishes are large in order to:

Which of the following is currently supplying high resolution C-ray images from space?

The name of the new Infrared Orbiting Observatory is the: