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A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest

A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest its time period is T. With what acceleration should the lift be accelerated upwards in order to reduce its period to T/2? (g is the acceleration due to gravity)

Options

(a) 4g
(b) g
(c) 2g
(d) 3g

Correct Answer:

3g

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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