Acoustics Two Marks Questions

10th Standard EM

    Reg.No. :
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Science

Time : 00:45:00 Hrs
Total Marks : 20
    10 x 2 = 20
  1. What is a longitudinal wave?

  2. What is the audible range of frequency?

  3. What is the minimum distance needed for an echo?

  4. What will be the frequency sound having 0.20 m as its wavelength, when it travels with a speed of 331 m s–1?

  5. Name three animals, which can hear ultrasonic vibrations

  6. If the amplitude of a wave is doubled, what will be the loudness?

  7. How can we measure the depth of a sea by using "SONAR"?

  8. Why longitudinal waves are called pressure waves?

  9. What does cause the rolling sound of thunder?

  10. What is the difference between wave velocity and particle velocity?

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