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BITSAT2009PhysicsOscillationsActual

A pendulum bob carries a +ve charge + q . A positive charge + q is held at the point of support. Then the time period of the bob is [where, L = length of pendulum, g _ eff = effective value of g ]

Options

  1. Agreater than 2 L / g _ eff
  2. Bless than 2 L / g _ eff
  3. Cequal to 2 L / g _ eff
  4. Dequal to 2 2 ~L / g _ eff

Correct answer

A. greater than 2 L / g _ eff

Step-by-step solution

Effective g^ =g- k q² d² m , T 1 g_ eff

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