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MHT CET202519 Apr 2025Evening ShiftPhysicsWaves and SoundActual

The frequency of a tuning fork is 256 Hz. It will not resonate with the tuning fork of frequency

Options

  1. A256 Hz
  2. B512 Hz
  3. C754 Hz
  4. D768 Hz

Correct answer

C. 754 Hz

Step-by-step solution

Resonance occurs when frequencies are exact integer multiples. Given f₀ = 256 Hz , the harmonic frequencies are n 256 Hz for integer n . The frequency 754 Hz is approximately 2.945f₀ , which is not an integer multiple of 256 Hz and will not resonate. 512 Hz = 2f₀ and 768 Hz = 3f₀ are harmonics and will resonate. The tuning fork that does not resonate is C .

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