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| Q. |
The time period of a pendulum when taken to the Moon would: |
| A. | remain the same |
| B. | decrease |
| C. | become zero |
| D. | increase |
| Answer» D. increase | |
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Explanation: Since the pendulum rate will increase with an increase in gravity, and local gravity varies with latitude and elevation on Earth, pendulum clocks must be readjusted to keep time after a move. For example, a pendulum clock moved from sea level to 4000 feet will lose 16 seconds per day. |
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