According to the special theory of relativity,if a 30-year old astronaut sent on a space mission is accelerated to speeds close to that of light,and then returns to earth after 20 years as measured on earth,what would be his biological age upon returning?
A) less than 50 years
B) 50 years
C) more than 50 years
D) exactly 100 years

Question

Quizplus · Accepted Answer

According to the theory of relativity, time dilation occurs as an object approaches the speed of light. This means that time appears to pass more slowly for the astronaut relative to observers on Earth. Therefore, the astronaut's biological age would be less than 50 years upon returning to Earth.

According to the Special Theory of Relativity,if a 30-Year Old