Question

Loudness of sound is proportional to the square of the amplitude of the vibration producing the sound. For example, if the amplitude becomes twice, the loudness increases by factor of 4. The loudness is expressed in a unit called decibel (Db). Above 80 dB the noise becomes painful On the study of the above passage answer the following questions
What do you mean by amplitude of the vibration?
List any two reasons for noise pollution?
State any two measures to reduce noise pollution?​

Answer 1

Answer:

Loudness of sound is proportional to the square of the amplitude of the vibration producing the sound. For example, if the amplitude becomes twice, the loudness increases by a factor of 4. The loudness is expressed in a unit called decibel (dB).