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

question 18

Multiple Choice

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

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