Question

differentiate between loudness and intensity of sound

Answer 1

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LOUDNESS == Loudness refers to how loud or soft a sound seems to a listener. The loudness of sound is determined, in turn, by the intensity, or amount of energy, in sound waves. The unit of intensity is the decibel (dB). As decibel levels get higher, sound waves have greater intensity and sounds are louder.

intensity of sound== 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.



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Answer 2

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$\purple{\bold{\underline{\underline{Loudness:-}}}}$

• The loudness of sound is defined as the degree of sensation of sound produced in the ear.
• The loudness of sound depends on its amplitude.
• The amplitude of sound decides its intensity.

$\green{\bold{\underline{\underline{Intensity:-}}}}$

• Intensity of sound wave is defined as the arrange transported per second, per unit area perpendicular to the direction of propogation.
• It is meausred in W/m²
• The intensity of sound in air depends on the square of the frequency and square of the amplitude.

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