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Why is the loudness of the sound heard b...

Why is the loudness of the sound heard by a plucked wire increased when it is mounted on a sound board ?

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ICSE-SOUND-EXERCISE -7(C )
  1. How does the wave pattern of a loud note differ from that of a soft no...

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  2. In which units is the loudness of sound measured?

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  3. Why is the loudness of the sound heard by a plucked wire increased whe...

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  4. Define the term intensity of a sound wave. State the unit in which it ...

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  5. How is loudness of sound related to the intensity of wave producing it...

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  6. Comment on the statement 'loudness of sound is of subjective nature, w...

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  7. State three factors which affect the loundess of a sound heard by a li...

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  8. The outer case of the bell in a temple is made big. Give a reason.

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  9. Name the unit used for measuring the sound level.

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  10. State the safe limit of sound level in terms of decibel for human hear...

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  11. What is meant by noise pollution? Name one source of sound causing noi...

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  12. State one factor which determine pitch of sound.

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  13. Name the subjective property of sound related to its frequency

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  14. Name and define the characteristic which enables one to distinguish tw...

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  15. Draw a diagram to show the wave pattern of a pitch note and a low pitc...

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  16. How is it possible to detect the filling of a bottle under a water tap...

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  17. The frequencies of notes given by flute, guitar and trumpet are respec...

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  18. Complete the following sentences : The pitch of sound increases if...

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  19. Complete the following sentences : If the amplitude of a sound is h...

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  20. The diagram below shows three different modes of vibration P, Q and R ...

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