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Give two practical applications of refle...

Give two practical applications of reflection of sound waves.

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MBD-SOUND-Example
  1. Explain in brief the dependence of speed of sound on nature of materia...

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  2. Define the terms time period and frequency of an oscillating body. Giv...

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  3. Give two practical applications of reflection of sound waves.

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  4. Distinguish between the terms music and noise.

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  5. How can bats ascertain distances, directions, nature and size of the o...

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  6. It is observed that some animals get disturbed before earthquake. How ...

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  7. What will be the frequency of Mohan's heart when it beats 75 times in ...

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  8. A boat strikes waves of ocean having crest 100 m away. The wave veloci...

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  9. A source of wave produces 40 crests and 40 trough in 0.4 s. Find the f...

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  10. A source produces a sound of wavelength. 1.7 xx 10^-2 m. If its veloci...

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  11. What will be the frequency of the wave, if its time period is 0.05 s ?

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  12. Longitudinal waves is produced on a spring. This wave travles with a ...

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  13. A message was transmitted from boat which returned to the sender after...

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  14. The frequency of a tuning fork is 600 Hertz. What will be its time per...

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  15. A stone is dropped in a 44.1 m deep well. If the sound produced by str...

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  16. A man claps near a cliff and echo is heard after 5 s. If the velocity ...

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  17. A ship produces ultrasonic sound which is collected in 3.42 s after re...

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  18. What is sound ?

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  19. In which medium the velocity of sound is more — solids or Gases ?

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  20. What is the audible range of average human ear?

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