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Jan 25

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A numerical problem from Beats

Nithya asks:

  1. “A source of sound frequency 256Hz is moving rapidly towards a wall with a velocity of 5m/s. How many beats per second will be heard if sound travels at a speed of 330m/s?”
  2. a wire of length 140 cm and mass 0.52×10- kg is stretched by means of a load of 16 kg. Calculate the frequency of the fundamental node?

Ans:

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