Find the intensity of a sound - Wave problem

AI Thread Summary
The discussion revolves around calculating the intensity of sound from a point source, given an initial intensity of 1.0 x 10^-5 W/m² at a distance of 1.0 m and an amplitude of 70 mm. Participants highlight the relationships between intensity, amplitude, and distance, noting that intensity is proportional to the square of the amplitude and inversely proportional to the square of the radius. There is confusion regarding the specific question being asked, with some expressing uncertainty about the mathematical approach and whether additional information is needed. The conversation emphasizes the need for clarity in the problem statement to proceed with the calculations effectively. Overall, the thread seeks to resolve the ambiguity in the homework question while applying the relevant physics concepts.
Gunman
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Homework Statement


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


Homework 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

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?
 
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I don't understand the question. You are given the intensity at one distance, but what are you being asked to find? (You may have left out part of the question.)
 

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