In order to find time, the astronaut orbiting in an earth satellite should use
In order to find time, the astronaut orbiting in an earth satellite should use
A pendulum clock
A watch having main spring to keep it going
Either a pendulum clock or a watch
Neither a pendulum clock nor a watch
In order to find time, the astronaut orbiting in an earth satellite should use
In pendulum clock the time period depends on the value of $g$, while in spring watch, the time period is independent of the value of $g$.
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