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What is the formula to calculate time period of a pendulum?

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Important Questions on Measurement and Experimentation

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How is time measured in the simplest sundial?
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What is the smallest measurable time interval in a digital stopwatch?
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What will be the relation between the time periods to two pendulums of lengths 1 m L1 and 9 m L2?
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Which of the following affects the time period of a pendulum?
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Why does the time period of a pendulum depend on gravitational acceleration?
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What does the term 'periodic motion' mean?
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Which device measures time intervals accurately in sports?
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Second's pendulum's time period is precisely _____ second (s).
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Which factor causes time dilation in relativistic physics?
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What is the time period of a pendulum with a length of 1 m? (g = 9.8 m/s^2)
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What is the significance of atomic time standards?
MEDIUM
If the length of a simple pendulum is increased by 25%, then what is the change in its time period?
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Why is an atomic clock more accurate than a pendulum clock?
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Which of the following phenomena can be used as a measure of time?
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Choose a larger unit to measure time from the following options.