+
Related Flashcards
Related Topics
Cards In This Set
| Front | Back |
|
Large reflector telescopes have the following significant advantages over large refractors:
|
Both mirrors are less expensive to fabricate than lenses and mirrors weigh less than lenses
|
|
Which of the following is an inherent disadvantage of radio telescopes?
|
The long wavelength of radio waves results in lower resolving power
|
|
Which of the following is a significant advantage of the HST compared to the 4-meter Kitt telescopes?
|
The HST isn't affected by atmospheric scintillation
|
|
Which of the following telescopes is most suitable for observing cool gas clouds?
|
Radio telescope
|
|
Which of the following is the most commonly used detector system in modern astronomy?
|
CCD's
|
|
Which device weighs less than lenses of the same size?
|
Mirrors
|
|
_____ is the most important quality of an astronomical telescope.
|
Resolving power
|
|
Which design parameter affects the light gathering power of a telescope?
|
Diameter
|
|
The major advantage of space-based telescopes is ______.
|
They are not affected by atmospheric scintillation
|
|
Gamma ray telescopes, such as the Chandra, are launched into space because they are dangerous to operate Earth.
|
False
|
|
The design of radio telescopes is very similar to the design of refracting telescopes.
|
False
|
|
To double the light gathering power of a telescope, we need to double the diameter.
|
False
|
|
Which design parameter affects the magnification of a telescope?
|
Lens
|
|
Which of the following quantities is most crucial in terms of the quality of a telescope?
|
Diameter of mirrors/lens
|
|
Which of the following telescopes would not be suitable for ground-based observations:
|
Only X-ray telescope and ultraviolet telescopes above would not be suitable.
|
