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A sound source sends waves of frequency 400 Hz and 2.5 m wavelength. What will be the speed of sound waves?1. 1000 m / s2. 10000 m / s3. 100 m / s4. 10 m / s

Answer» Correct Answer - Option 1 : 1000 m / s

The correct answer is 1000 m /s.

  • The sound waves are a type of longitudinal waves.
  • These waves travel through a medium like air or water.
  • sound waves can also be categorized into mechanical waves or pressure waves.
  • Some of the examples of longitudinal waves are Tsunami waves, clapping, and earthquakes.

 

  • To calculate the speed of sound waves, the formula will be calculated as -

           Speed = wavelength x frequency.

  • The wavelength can be defined as the distance between two successive crests or two successive troughs.
  • Frequency can be defined as the number of waves that pass through a fixed point in a definite amount of time.


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