The time period of a simple pendulum measured inside a stationary lift is found to be \( T \). I...

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The time period of a simple pendulum measured inside a stationary lift is found to be \( T \). If the lift starts accelerating upwards with an acceleration \( g / 3 \), the time period is
[EAMCET 1994; CMEET Bihar 1995; RPMT 2000]
(a) \( T \sqrt{3} \)
(b) \( T \sqrt{3} / 2 \)
(c) \( T / \sqrt{3} \)
(d) \( T / 3 \)
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