00:01
First consider subpart a.
00:03
The equation for the intensity of sound wave is given by i is equal to delta p square divided by 2 row vw.
00:15
Here delta p is the pressure amplitude of the sound wave.
00:19
R is the density of the material through which sound wave travels and vw is the velocity of sound wave in the medium.
00:27
From the equation, it is clear that the intensity of the sound wave is directly proportional to the square of the amplitude of the sound wave.
00:38
It is given that the intensity, sorry, the amplitude of the sound wave is changed to four times the initial amplitude of the sound wave.
00:53
From the equation, it is clear that when the amplitude of the sound wave is increased by a factor of 4, the intensity of the sound wave will be increased by a factor of 4 square.
01:10
This gives, the intensity of the sound wave will be changed to 16 times the initial intensity...