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JIPMER2005PhysicsOscillations

A simple pendulum of length l has a maximum angular displacement . The maximum kinetic energy of the bob is

Options

  1. Am g l(1- )
  2. B0.5 mgl
  3. Cmgl
  4. D0.5 mgl

Correct answer

A. m g l(1- )

Step-by-step solution

Here : length of pendulum =l maximum angular displacement = mass of the bob =m Now height of the bob at maximum angular displacement is h=l-l =l(1- ) Also at the end of the displacement kinetic energy of the bob = potential energy of the bob =m g h=m g l(1- )

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