Answers

2014-08-29T11:29:49+05:30
When the frequency of the sound is higher, the quality of the sound becomes shrill. When the frequency of the sound is low, the sound becomes mild. In this way, frequency determines the quality of the sound.
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2014-08-29T15:16:12+05:30
Quality is a charecterstic of sound which is a mixture of different frequencies with different loudnesses. sound waves with high frequency will produce sounds of high shrillness and low frequency means less shriller.
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