Question

A point source emits sound waves of amplitude A. The sound intensity at a distance d from the

Answer 1

Answer:

The sound intensity is  16I

Explanation:

Given:

Dsitance d = 0.5

Amplitude  = 2A

To Find:

sound intensity = ?

Solution:

We Know that

$I \propto \frac{A^{2}}{r^{2}}$

When Distance is d, wuth amplitude A

The sound intensity $I = C \frac{A^{2}}{d^{2}}$---------------------(1)

Where

C is proportionality constant

Substituting the values

$I^'= C \frac{(2A)^{2}}{0.5^{2}}$

$I^'= C \frac{4A^{2}}{0.25d^2}$

$I^'= C \frac{16A^{2}}{d^2}$

$I^'= \frac{16CA^{2}}{d^2}$

From 1 , $I^'= 16I$