What will be the resultant decibel level when there are 4 sources making noise of equal levels?
READ MORE +Noise Pollution MCQs
10 decibel (dB) increase in sound level will increase the loudness of sound by
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The frequency of sound is measured by the unit
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An acceptable noise level for residential and business areas as per IS: 4594: 1968 is
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Name the instrument used for acoustics measurement
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Under residential use zone, identify the accessory use which is NOT permissible
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The intensity of sound wave combined with reception characteristics of ear is known as
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The energy transmitted by a sound wave in the direction of its propagation is called
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The level at which the ear registers pain
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The noise pollution which produces pain in the heart and narrowing of arteries comes under the following effect?
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Increase in pressure cause the sound to
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The mixer-grinders, desert coolers exhaust fans, sewing and washing machines are all sources of noise pollution. This pollution is termed as
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