Observer a Sees a Pendulum Oscillating Back and Forth in a Relativistic

question 70

Multiple Choice

Observer A sees a pendulum oscillating back and forth in a relativistic rocket and measures its period to be T_A.Observer B moves along with the rocket and measures the period of the pendulum to be T_B.What is true about these two time measurements?

• A)T_A > T_B
• B)T_A = T_B
• C)T_A < T_B
• D)T_A could be greater or smaller than T_B depending on the direction of the motion.

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