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Concepts Of Physics MCQ Edition [Volume 1]PhysicsSimple Harmonic Motion

A heavy ball is hung by a 5.0 m long string to construct a simple pendulum. It executes small oscillations. How many oscillations does it complete per second? (Assume standard acceleration due to gravity on Earth, g = 9.8 m/s ^2 ).

Options

  1. A0.35 Hz
  2. B0.70 Hz
  3. C1.4 Hz
  4. D0.70 Hz

Correct answer

D. 0.70 Hz

Step-by-step solution

The frequency of a simple pendulum is given by the formula f = 1 2 g L . Substituting the given values L = 5.0 m and g = 9.8 m/s ^2 : f = 1 2 9.8 5.0 f = 1 2 1.96 f = 1.4 2 f = 0.70 Hz

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