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Wave Equation

Decibel is :

Question

Decibel is :

A

a sound apparatus

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B

a sound tone

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C

the unit of intensity of sound

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D

the wavelength of noise

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Solution

The correct option is B the unit of intensity of sound
The SI unit of intensity of sound is $W / m^{2}$ . Level of intensity of sound (or loudness) is measured in bel or decibel .

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