1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Power radiated by a sound source

  1. May 27, 2006 #1
    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?
  2. jcsd
  3. May 29, 2006 #2
    Please respond.
  4. May 29, 2006 #3

    Andrew Mason

    User Avatar
    Science Advisor
    Homework Helper

    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.

  5. Jun 6, 2006 #4
    I think what he is saying is:

    Does A/B = x ? In other words, does A = bx ??
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Power radiated by a sound source
  1. Sound power in room (Replies: 8)