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Mr. Dubey • 100.64K Points
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Q. Which of the following describes the sound field propagating in a piece of steel bar stock which is being tested from one end with longitudinal waves?

  • (A) Non uniform, containing maxima and minima because of the focusing effect of laterally reflected waves
  • (B) Increasing to a peak, then decreasing throughout the far field
  • (C) Uniformly decreasing along the length of the bar
  • (D) Decreasing according to the inverse square law
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