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Helium gas is filled in two identical bo...

Helium gas is filled in two identical bottles A and B. The mass of the gas in the two bottles is 10 gm and 40 gm respectively. If the speed of sound is the same in both bottles, what conclusions will you draw?

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CHETANA PUBLICATION-Study of Sound-EXERCISE
  1. Helium gas is filled in two identical bottles A and B. The mass of the...

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  2. The unit of frequency is …………… .

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  3. The normal hearing range for humans is ………… .

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  4. Sound will not travel through ……….. .

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  5. SI unit of …………..is Hertz (Hz).

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  6. The velocity of sound is inversely proportional to the………… .

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  7. Sound waves with frequency greater than 20 kHz are called……….. .

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  8. The loudness of a sound depends upon ………… .

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  9. …../… are used in sonography.

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  10. The ……….receives the vibrations coming from the membrane and converts ...

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  11. Sound will not travel through ……….. .

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  12. SI unit of …………..is Hertz (Hz).

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  13. The loudness of a sound depends upon ………… .

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  14. …………are used in sonography.

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  15. Match the columns:

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  16. The intensity of reverberation is higher in a closed and empty house.

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  17. Bats can navigate in dark.

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  18. Sound travels faster in iron than in air.

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  19. The roof of a movie theatre and a conference hall is curved. Why?

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  20. The intensity of reverberation is higher in a closed and empty house.

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  21. What is an echo? What factors are important to get a distinct echo?

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