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Sound of which frequency from the follow...

Sound of which frequency from the following is ultrasonic sound?

A

30 Hz

B

300 Hz

C

3000 Hz

D

30,000 Hz

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30,000 Hz
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KUMAR PRAKASHAN-SOUND-QUESTIONS AND ANSWERS (Choose the correct option from those given below cach question:)
  1. What is the full form of SONAR?

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  2. What is the range of wavelength in air of audible sound waves ? (When ...

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  3. Sound of which frequency from the following is ultrasonic sound?

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  4. When is echo heard?

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  5. Which of the following relations is true for sound waves?

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  6. Which of the following formula is true showing the relation between wa...

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  7. What is the phase difference between consecutive crest and through ?

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  8. The distance between two consecutive conden sations in the sound wave ...

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  9. In the air, the velocity of sound wave is 340 ms^(-1) and wavelength i...

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  10. Waves of light are ........

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  11. On which of the following factors does the velocity of wave not depend...

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  12. The wavelength of the wave produced on the surface of water is 2 cm. I...

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  13. Two waves produced from a source are shown in the following figure. St...

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  14. Wave of which of the following frequenciescould we hear?

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  15. What is the frequency range of audible sound wave?

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  16. Which type of sound waves does the bat produce?

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  17. Who can experience ultrasonic sound?

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  18. Which waves are used in ECG technique?

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  19. Whose unit is decibel (dB)?

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  20. The SI unit of intensity of sound is ........

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