In the general theory of relativity, we assume the observer to be
A) moving with constant velocity.
B) moving at a significant fraction of lightspeed.
C) moving slowly compared to lightspeed.
D) at rest.
E) None of the above.

Question

Quizplus · Accepted Answer

In general relativity, observers can be in any state of motion, including accelerating or in gravitational fields, so none of the specific conditions listed are assumed.

In the General Theory of Relativity, We Assume the Observer