Power radiated by a sound source


by Amith2006
Tags: power, radiated, sound, source
Amith2006
Amith2006 is offline
#1
May27-06, 09:39 AM
P: 424
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
Going nuts? Turkey looks to pistachios to heat new eco-city
Space-tested fluid flow concept advances infectious disease diagnoses
SpaceX launches supplies to space station (Update)
Amith2006
Amith2006 is offline
#2
May29-06, 09:09 AM
P: 424
Sir,
Please respond.
Andrew Mason
Andrew Mason is offline
#3
May29-06, 06:50 PM
Sci Advisor
HW Helper
P: 6,572
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
dimensionless is offline
#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