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BEIITIANS-SOUND-Summative Worksheet (In the following statements, tick .T. against those which are true, and .F. against those which are false)
- Sound cannot travel in vacuum
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Playing Now - The number of oscillations per second of a vibrating objects is called...
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Play - If the amplitude of vibration is large, sound is feeble.
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Play - For human ears, the audible range is 20 Hz to 20,000 Hz.
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Play - The lower the frequency of vibration, the higher is the pitch.
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Play - Unwanted or unpleasant sound is termed as music.
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Play - Noise pollution may cause partial hearing impairment.
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