Question

Discuss the factors on which the loudness of sound depends.

Answer 1

1. Loudness of a sound is defined as the measure of the intensity of a wave.
2. Intensity refers to the energy carried by the wave (by the sound).
3. Loudness is directly proportional to the square of the amplitude of a sound wave-
4. $L\alpha A^2$; where L is the Loudness and A is the amplitude.
5. Larger the amplitude, the larger is the Loudness.
6. Unit of Loudness is decibel.
7. Sound received or delivered above 80 decibels becomes noise for a human ear.