The quantity that shifts in a gravitational red shift is
A)wave frequency.
B)wave direction.
C)field intensity.
D)space-time curvature.
E)none of these

Question

Quizplus · Accepted Answer

The frequency of a wave is the quantity that shifts in a gravitational red shift. This is because in a region with strong gravitational fields, time is slowed down, and as a result, the perceived frequency of light waves is lowered. This is known as gravitational red shift. Therefore, option A is the correct answer.

The Quantity That Shifts in a Gravitational Red Shift Is