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MHT CET202313 May 2023Morning ShiftPhysicsOscillationsActual

A simple pendulum has a time period ' T ' in air. Its time period when it is completely immersed in a liquid of density one eighth the density of - the material of bob is

Options

  1. A( 7 8 ) T
  2. B( 5 8 ) T
  3. C( 3 8 ) T
  4. D( 8 7 ) T

Correct answer

D. ( 8 7 ) T

Step-by-step solution

Time period of simple pendulum T =2 l ~g T 1 g Net downward force acting on the bob inside the liquid = Weight of bob - Upthrust Vpg - V g = 7 8 ~V g The value of g inside the liquid will be g 8 aligned Time period in liquid T ₁ & = 1 2 l 7 8 & = 8 7 ~T aligned

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