A) increases with increase in velocity with respect to an observer.
B) decreases with increase in velocity.
C) decreases with decrease in velocity.
D) is independent of its velocity.
Correct Answer: A
Solution :
According to the Special Theory of Relativity, the mass of a moving object measures more as its velocity increases until, at the speed of light, it becomes infinite. This is because as an object gains speed, it gains more (kinetic) energy.
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