Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Inverse square law

  1. Oct 14, 2004 #1
    I had a question regarding a sound with a given Intensity and a given radius (say 0.1m from point source) that travels through a door with dimensions given as well. It also gives a second radius (say 30m from point source) and asks what the acoustic power was at a second radius after travelling through the door.

    I know I am using the inverse square law to relate the second intensity, but how do I figure the door into the question?

    Im sorry I cant give the exact question, it was in a quiz and I dont have any similar examples with me. Im trying to remember the question off the top of my head.

    Any help would be excellent.

  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted