Multiple Choice
What does the word "radiation" mean when used by scientists?
A) invisible forms of light such as X-rays and radio waves
B) the light emitted by black holes and protostars
C) high-energy particles from nuclear reactors
D) anything that spreads out from a central source
Correct Answer:
Verified
Correct Answer:
Verified
Q13: Which of the following types of radiation
Q15: Which feature(s)of a telescope determine its magnifying
Q16: What is the purpose of interferometry?<br>A)It is
Q17: Why do astronomers build radio telescopes?<br>A)Radio waves
Q20: What causes chromatic aberration? Why does it
Q21: A(n)_ uses a mirror as its objective.
Q22: Why must far-infrared astronomy be done from
Q34: All radio telescopes are refracting telescopes.
Q75: The _ is a measure of the
Q115: What advantages does a large-diameter astronomical telescope