FREE AND STUDY GAMES ABOUT ASTRONOMY CHP 4

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FREE AND STUDY GAMES ABOUT ASTRONOMY CHP 4

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -33 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Which device weighs less than lenses of the same size?

Answer:

mirrors

Question 2: The major advantage of space-based telescopes is _______.

Answer:

they are not affected by atmospheric scintillation

Question 3: Which device accumulates light?

Answer:

photographic film

Question 4: Which device is used in optical telescopes with segmented design?

Answer:

mirrors

Question 5: Disadvantages of reflector telescopes:

• not suitable for ultraviolet light
• weigh more
• focus different colors at different apots.
• all of the above
• none of the above

Answer:

none of the above Question 6: Telescope X can resolve two stars that are separated by at least 2 seconds of arc. If telescope Y can resolve two stars that are separated by 1 second of arc, then (at the same

wavelength) compared to telescope X:

Answer:

Telescope Y has at least twice the resolving power

Question 7: Which design parameter affects the resolving power of a telescope?

• lens
• diameter
• atmosphere is opaque
• atmosphere is transparent
• none of the above

Answer:

diameter

Question 8: Which design parameter of a telescope suffers from dispersion

• lens
• diameter
• atmosphere is opaque
• atmosphere is transparent
• none of the above

Answer:

lens

Question 9: Which design parameter affects the magnification of a telescope?

• lens
• diameter
• atmosphere is opaque
• atmosphere is transparent
• none of the above

Answer:

none of the above

Question 10: Which device processes signals from interferometers?

Answer:

computer

Question 11: The largest telescope of this kind is 1 m in diameter?

Answer:

refractor Question 12: Which of the following is a most significant advantage of the Hubble Space Telescope (HST) compared to the 4-meter reflectors at the Kitt Peak observatory?

Answer:

not affected by atmospheric scintillation.

Question 13: Which device creates a false color image?

Answer:

Computer Question 14: Which of the following telescopes is most suitable for observing cool gas clouds?

Answer:

Radio telescope

Question 15: Which device reads data from a CCD detector?

Answer:

computer

Question 16: Which device points a telescopes in a desired direction?

Answer:

computer Question 17: Which of the following is an inherent disadvantage of radio telescopes:

Answer:

The long wavelength of radio waves results in lower resolving power, compared to other telescopes of the same size.

Question 18: Which device is affected by dispersion

Answer:

refractor

Question 19: Which design parameter is suitable for Earth-based observation?

• lens
• diameter
• atmosphere is opaque
• atmosphere is transparent
• none of the above

Answer:

atmosphere is transparent to this wavelength Question 20: Which design parameter affects the weight of the lens of a telescope

• lens
• diameter
• atmosphere is opaque
• atmosphere is transparent
• none of the above

Answer:

diameter Question 21: Which design parameter is unsuitable for an Earth-based observation telescope?

• lens
• diameter
• atmosphere is opaque
• atmosphere is transparent
• none of the above

Answer:

atmosphere is opaque to this wavelength

Question 22: ______ is the most important quality of an astronomical telescope

Answer:

Resolving power