What is a pulsar?
A) A pulsating white-dwarf star,fluctuating rapidly in brightness
B) A rapidly rotating neutron star,producing beams of radio energy and in some cases,light and X-rays
C) A rotating black hole,producing two jets of gas in opposite directions and pulses of gravitational energy
D) A Cepheid variable star with a period of a few days
Correct Answer:
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Q41: Among the following locations in the universe,where
Q42: In what year was the first pulsar
Q43: Black holes are so named because
A) they
Q44: Pulsars are
A) pulsating white dwarfs.
B) pulsating neutron
Q45: The first pulsar was detected using
A) the
Q47: Which of the following astronomical objects are
Q48: What range in the electromagnetic spectrum was
Q49: What is the relationship between neutron stars
Q50: A pulsar is most probably formed
A) in
Q51: A pulsar is a(n)
A) interstellar beacon manufactured
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