Author Question: The discovery of the cosmic microwave background was important because: A) it established a firm ... (Read 48 times)

acc299 · **on:** Jul 27, 2018

The discovery of the cosmic microwave background was important because:

A) it established a firm center of the Universe.
B) it was experimental verification of a prediction from the Big Bang theory.
C) it proved that astronomy at radio wavelengths was possible.
D) its detection was a major advance in microwave testing.
E) it showed the universe must be closed, with more than the critical density here.

Question 2

If light from a distant star passes close to a massive body, the light beam will:

A) bend towards the star due to gravity.
B) continue moving in a straight line.
C) change color to a shorter wavelength.
D) slow down.
E) accelerate due to gravity.