Fill in the blanks. 1. Sound travels through a 6. Sound above decibel is inaudible sound for human ears. The shrillness of sound depends on 2 Sound cannot propagate through 3. Maximum displacement of a pendulum on either side from a 'zero point is 7. 8. The unpleasant and irritating sounds create 4. Human throat produces sound through 9. 5. Sound below decibel is inaudible sound for human beings. Too much and regular noise may cause hearing Time period is the time taken by a pendulum to complete .... oscillation. 10.
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sound travels to air
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sound traval to air
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