Multiple Choice
The cosmic background radiation corresponds to a temperature of about
A) 1.4 K.
B) 2.7 K.
C) 3.0 K.
D) 3.3 K.
E) 3.6 K.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q9: If a galaxy is receding at 0.10
Q10: Star A has twice the parallax as
Q11: The apparent brightness of a star is
Q12: Four different main-sequence stars are colored blue,
Q13: The Earth's orbit has a mean radius
Q15: About 1 μs after the Big Bang,
Q16: The Schwarzschild radius of a black hole
Q17: One star has a surface temperature of
Q18: Which of the following is arranged from
Q19: Black holes<br>A)are holes in space, devoid of