Time period of a simple pendulum is \( \mathrm{T} \) inside a lift ...

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Time period of a simple pendulum is \( \mathrm{T} \) inside a lift when
W the lift is stationary. If the lift moves upwards with an acceleration \( g / 2 \), the time period of pendulum will be:
[JEE Main-2021 (March)]
(a) \( \sqrt{3} T \)
(b) \( \sqrt{\frac{2}{3}} T \)
(c) \( \frac{T}{\sqrt{3}} \)
(d) \( \sqrt{\frac{3}{2}} T \)
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