The proper time between two events is measured by clocks at rest in a reference frame in which the two events:
A)occur at the same time
B)occur at the same coordinates
C)are separated by the distance a light signal can travel during the time interval
D)occur on the Earth's surface
E)none of the above

Question

Quizplus · Accepted Answer

The proper time between two events is measured by clocks that are at rest in the same reference frame as the events and located at the same place where the events occur, meaning they occur at the same coordinates. This ensures that the time measured is intrinsic to the events and not affected by relative motion or the distance between the events.

The Proper Time Between Two Events Is Measured by Clocks