Question

if ............. of sound is decreased ,its loudness also decreases.

Answer 1

Answer:

Amplitude

Explanation:

The amplitude of the sound is responsible for the intensity of the sound produced. If the Amplitude is larger, the volume and the intensity of the sound is also higher. The sound with the higher intensities sounds louder as compared to those with the sounds of lower intensities which illustrates that the Loudness of the sound is directly proportional to Amplitude.

I.e.

$Loudness\propto Amplitude$

Therefore, if Amplitude decreases, loudness also decreases.

Answer 2

Answer:

if amplitude of sound is decreased ,its loudness also decreases.

Explanation:

Amplitude is the maximum displacement of the vibrating particles from the mean position.

Loudness is proportional to the square of the amplitude.

loudness = (amplitude)²

• so if amplitude increases , loudness of sound also increases .

• The amplitude of a sound wave determines its loudness or volume. A larger amplitude means a louder sound, and a smaller amplitude means a softer sound