Register to reply

Power radiated by a sound source

by Amith2006
Tags: power, radiated, sound, source
Share this thread:
Amith2006
#1
May27-06, 09:39 AM
P: 423
Sir,
A loud speaker having a circular opening of diameter 20 cm is emitting sound waves uniformly. The intensity of sound at the opening is 0.2 milli watt/m^2. What is the power radiated by the source?
I solved it in the following way:
Intensity = power/Area
Here Area = (pi)R^2
= 3.14 x 0.01
= 0.0314 m^2
Power = 0.2 x 0.0314 milli watts
= 6.28 x 10^(-6) watts
Is it right?
Phys.Org News Partner Science news on Phys.org
NASA team lays plans to observe new worlds
IHEP in China has ambitions for Higgs factory
Spinach could lead to alternative energy more powerful than Popeye
Amith2006
#2
May29-06, 09:09 AM
P: 423
Sir,
Please respond.
Andrew Mason
#3
May29-06, 06:50 PM
Sci Advisor
HW Helper
P: 6,654
Quote Quote by Amith2006
Sir,
Please respond.
Amith, No one is responding to this because it is trivial. You are saying:

A/B = x

And then asking:

Does A = Bx?

This is hardly advanced physics.

AM

dimensionless
#4
Jun6-06, 03:32 PM
P: 464
Power radiated by a sound source

I think what he is saying is:

Does A/B = x ? In other words, does A = bx ??


Register to reply

Related Discussions
Sound wave of a source? Introductory Physics Homework 1
1 V source, 1 I source, RL circuit, find power Engineering, Comp Sci, & Technology Homework 2
Direction of sound Source General Physics 1
Radiated power, what does this even mean? Introductory Physics Homework 9
Net Power vs. Net Radiated Introductory Physics Homework 1