Multiple Choice
The cosmic microwave background radiation was emitted when the universe had a size about 1/1000 of today's value. What was the temperature of the microwave background radiation when it was emitted?
A) 30 K
B) 300 K
C) 3000 K
D) 30,000 K
E) 300,000 K
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q44: If you found a galaxy with
Q78: The CMB is a snapshot of
Q79: If a galaxy has an apparent velocity
Q80: Galaxies move away from us in all
Q81: The inverse of the value of H<sub>0</sub>
Q82: What does the value of R<sub>U</sub>, the
Q84: The value of the scale factor R<sub>U</sub>
Q85: If there were more baryons in the
Q87: In an imaginary universe, astronomers find that
Q88: We see the universe around us expanding,