Multiple Choice
An inhabitant of a planet orbiting the star Betelgeuse (a distance of 197 parsecs from Earth) observes the flash from the first nuclear weapon on Earth, exploded in July 1945. If this extraterrestrial being were to send a signal to Earth immediately to confirm this sighting by exploding a bomb of equivalent brightness, and astronomers on Earth were watching his planet, when would they expect to see the flash?
A) 2076 A.D.
B) 2588 A.D.
C) 2799 A.D.
D) 3230 A.D.
Correct Answer:
Verified
Correct Answer:
Verified
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