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Question

A simple pendulum is hanged inside a car, if the car starts to move with constant acceleration,
then the time period of the pendulum will ​​​​​​

A
increase
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B
decrease
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C
not change
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Solution

The correct option is B decrease
While moving forward the pendulum will experience a pseudo force resulting in increasing the effective gravitational acceleration which is inversely proportional to the time period, hence reducing it.

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