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Loudness

The SI unit o...

Question

The SI unit of intensity of sound is

A

watt

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B

watt per metersquare

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C

watt per meter

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D

joule per meter

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E

joule per meter square

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Solution

The correct option is B
watt per metersquare

SI Unit of Intensity : watt per square meter [Wm^-2]

Unit of Loudness : bel and decibel

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