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MHT CET202020 Oct 2020Morning ShiftPhysicsOscillationsActual

If length of oscillating simple pendulum is made 1 3 times at a place keeping amplitude same, then its total energy (E) will be

Options

  1. A6 E
  2. B4 E
  3. C2 E
  4. D3 E

Correct answer

B. 4 E

Step-by-step solution

T=2 g 2 =2 g = g 1 ₂ ₁ = ₁ ₂ = ₁ ₁ / 3 = 3 ₂= 3 ₁ Now E ² E ₂ E ₁ = ₂² ₁² =3 E₂=3 E₁

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