Multiple Choice
The look-back time is
A) the time it takes for the light from an object to reach Earth.
B) numerically equal to the distance in light-years.
C) smaller for more distant objects.
D) All of the other choices are correct.
E) the time it takes for the light from an object to reach Earth and numerically equal to the distance in light-years.
Correct Answer:
Verified
Correct Answer:
Verified
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