Q.

Which wave property determines loudness?


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a

Frequency of sound wave

b

Amplitude of sound wave

c

Pitch

d

Wavelength 

answer is B.

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Detailed Solution

The amplitude of a sound wave property determines loudness.
The amplitude and frequency of sound waves are two important properties, as they are for all waves. The maximum displacement of the particle from its mean position is the wave's amplitude. It is the property that determines how loud the sound is. The amplitude and loudness are directly proportional, which means that the greater the amplitude, the louder the sound.
 
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Which wave property determines loudness?