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06-05-2016
Physics

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The threshold of hearing for humans is 30 decibels.
True
False

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taskmasters taskmasters

13-05-2016

False. Thirty decibels is not the threshold for the human ear. The human ear can hear sounds between 0 to 140 dB. The so-called hearing threshold for humans is 0 dB. It does not mean that at this level there is no sound instead we just can't hear it.

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