Suppose one twin takes a ride in a spaceship traveling at a very high speed to a distant star and then back again,while the other twin remains on Earth.Compared to the twin who remained on Earth,the astronaut twin is
A)younger than the Earth-twin.
B)the same age as the Earth-twin.
C)older than the Earth-twin.
D)The ages cannot be determined from the information provided.

Question

Quizplus · Accepted Answer

According to the theory of relativity, time dilation occurs when an object travels at high speeds. This means that time appears to pass more slowly for the object in motion. In this scenario, the astronaut twin is traveling at a very high speed, so time will pass more slowly for them relative to the stationary twin on Earth. As a result, the astronaut twin will age less than their Earth-twin counterpart. Therefore, the correct answer is choice A.

Suppose One Twin Takes a Ride in a Spaceship Traveling