what is meant by intensity of sound? how is it different from loudness? determine the wavelength of an ultrasonic wave of frequency 4.2MHz.the speed of ultrasonic wave is 1.7kms^-1
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Sound intensity also known as acoustic intensity is defined as the power carried by sound waves per unit area in a direction perpendicular to that area. The SI unit of intensity, which includes sound intensity, is the WATT per square meter (W/m2). One application is the noise measurement of sound intensity in the air at a listener's location as a sound energy quantity.
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Intensity of sound - It is defined as the sound power per unit area
The SI unit of sound intensity is the watt per square metre (W/m 2).
The sound intensity must be factored by the ear's sensitivity to the particular frequencies contained in the sound. while Sound loudness is a subjective term describing the strength of the ear's perception .
wavelengthλ = speed V / frequency n
= 1700 / 4.2 x10^6 = 4.05 x10^-4 m.
The SI unit of sound intensity is the watt per square metre (W/m 2).
The sound intensity must be factored by the ear's sensitivity to the particular frequencies contained in the sound. while Sound loudness is a subjective term describing the strength of the ear's perception .
wavelengthλ = speed V / frequency n
= 1700 / 4.2 x10^6 = 4.05 x10^-4 m.
sandeepmaheswari:
this correct or not
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