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The periodicity of a simple pendulum in a stationary lift is 2s. If the lift moves upward with an acceleration of 2 m / s,

The periodicity of a simple pendulum in a stationary lift is 2s. If the lift moves upward with an acceleration of 2 m / s, the period of the simple pendulum will be (a) 1.79 s (b) 1.7s (c) 1.6 s (d) 1.81 sn

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