1. The problem statement, all variables and given/known data A small source of sound radiates energy equally in all directions. At a particular frequency, the intensity of the sound 1.0 m from the source is 1.0 x 10-5m Wm-2, corresponding to an amplitude of oscillation of air molecules of 70milimetre. (Assume no energy loss) Find (i) the intensity of the sound 2. Relevant equations Energy is proportional to the square of the amplitude by a point Intensity is proportional to the inverse of the square of the radius Intensity is proportional to the square of the amplitude 3. The attempt at a solution (A)^2 proportional to (1/(r^2)) A proportional to (1/r) And since the amplitude is 70 * 10^-3 I tried using this way to solve the above question. But I have doubts as hm..mathematically its wrong somewhere. Is there another way to do this question?