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In SONAR, we use...

In SONAR, we use

A

ultrasonic waves

B

infrasonic waves

C

raido waves

D

audible sound waves

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MODERN PUBLICATION-SOUND-EXERCISE
  1. Note is a sound

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  2. A key of a mechanical paino struck gently and then struck again but mu...

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  3. In SONAR, we use

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  4. Sound travels in air if

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  5. When we change feeble sound to loud we increase its

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  6. Earthquake produces which kind of sound before the main shock wave beg...

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  7. Infrasound can be heard by

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  8. Before playing the orchestra in a musical concert, a sitarist tries to...

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  9. The total energy of a particle executing smple harmonic motion of ampl...

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  10. The frequency of a source of sound is 50 Hz. How many times does it vi...

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  11. A key of a mechanical paino struck gently and then struck again but mu...

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  12. The intensity of sound wave gets reduced by 20% on passing through a s...

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  13. Sound travels the fastest in

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  14. A person clapped his hands near a cliff and heard the echo after 5 s. ...

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  15. The frequency of seconds pedulum is

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  16. A source emits sound of frequency 600 Hz inside water. The frequency h...

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  17. Distance between a consecutive crest and trough is 5 cm. The wave leng...

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  18. In which part of the ear are sound waves amplified?

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  19. Which of the following help in the communication between two astronatu...

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  20. A marine survey ship sends a sound wave straight to the sea bed. It de...

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