Question

3. To increase the loudness of sound by four
times, by how much should the amplitude
of vibration be changed?​

Answer 1

Answer:

Since loudness L or the intensity of the sound. L = kA 2 where k is constant to increase the loudness by four times , the amplitude must be doubled so amplitude of magnitude 2 A is required hence the amplitude should be dobled to get four times loudness .

Answer 2

• Answer Since loudness L or the intensity of the sound. L = kA 2 where k is constant to increase the loudness by four times , the amplitude must be doubled so amplitude of magnitude 2 A is required hence the amplitude should be dobled to get four times loudness .

$\huge\bold\red{12 ||bhagyashree||12 }$