Multiple Choice
Advantages of a telescope in a spacecraft do not include
A) the absence of an atmosphere to affect light from space.
B) the absence of background radiation from the earth that may swamp faint signals from space.
C) less cost.
D) the ability to see the entire sky.
Correct Answer:
Verified
Correct Answer:
Verified
Q8: Cepheid variable stars<br>A) are very bright, easily
Q9: A star whose spectral lines are shifted
Q10: At the end of its period in
Q11: The sun has<br>A) no atmosphere.<br>B) an atmosphere
Q12: The majority of main-sequence stars are<br>A) blue.<br>B)
Q14: The two chief elements in the sun
Q15: Advantages of large reflecting telescopes include their
Q16: The earth's magnetic field influences<br>A) comets.<br>B) meteoroids.<br>C)
Q17: Neutron stars are about<br>A) the size of
Q18: Auroras consist of<br>A) colored clouds.<br>B) comet tails.<br>C)