Whispering produces a sound of about 30dB. What can the sound be considered?
A
Siren
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B
Unpleasant sound
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C
Pleasant sound
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D
Noise
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Solution
The correct option is C Pleasant sound Sound which is pleasant to hear is known as soft sound which is usually lesser than 80dB. Whispering produces about 30dB of sound which is considered a pleasant sound.