Which of the following is the sound of single frequency?

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RRB JE CBT I - (Held On: 30 May 2019 Shift 1)
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  1. Note 
  2. Noise 
  3. Timber or quality of sound
  4. Tone

Answer (Detailed Solution Below)

Option 4 : Tone
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The correct answer is Tone

Key Points

  • A tone is a sound that has a single frequency.
  • Unlike noise, which contains a mixture of frequencies, a tone is pure and consistent.
  • The terms note and timber or quality of sound refer to musical sounds and their characteristics but do not specifically imply a single frequency.
  • Understanding the distinction between these terms is crucial in fields like acoustics and music theory.

Additional Information

  • Frequency is measured in Hertz (Hz) and represents the number of cycles per second of a sound wave.
  • Musical instruments can produce tones, but the quality and richness of the sound are described by additional factors such as harmonics and overtones.
  • The human ear can typically hear frequencies ranging from 20 Hz to 20,000 Hz.
  • In audio engineering, ensuring a pure tone is crucial for calibration and testing purposes.
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