Sound or noise is characterized by the following parameters?

A. Pressure

B. Mass

C. Power

D. Quality

E. Intensity

Choose the correct answer from the options given below:

The correct answer is - A, C and E Only

Key Points

• Pressure
  • Sound is a mechanical wave that propagates through a medium, causing variations in pressure.
  • These pressure variations are detected by our ears and interpreted as sound.
• Power
  • Sound power is the rate at which sound energy is emitted, reflected, transmitted, or received, per unit time.
  • It is a measure of the energy output of a sound source.
• Intensity
  • Sound intensity is the sound power per unit area. It describes the energy of the sound wave.
  • It is measured in watts per square meter (W/m²).

Additional Information

• Mass
  • Mass is not a direct characteristic of sound or noise. It is a property of physical objects, not wave phenomena.
• Quality
  • Quality, often referred to as timbre, is a subjective characteristic that distinguishes different types of sound that have the same pitch and loudness.
  • It is influenced by the harmonic content and the dynamic characteristics of the sound.