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MHT CET202020 Oct 2020Morning ShiftPhysicsOscillationsActual

A pendulum performs S.H.M. with period 3 second in a stationery lift. If lift moves up with acceleration g 3 , the period of pendulum is [ g = acceleration due to gravity ]

Options

  1. A2 00 second
  2. B1 5 second
  3. C2 5 second
  4. D1 75 second

Correct answer

B. 1 5 second

Step-by-step solution

T = 3 a = g 3 T ^ =2 g + g 3 T^ T = g 4 g / 3 = 3 2 T ^ = 3 3 2 = 3 2 =1.5 ~sec

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