Re: a sound question???

From: Sam Wormley (swormley1_at_mchsi.com)
Date: 08/22/04 

Date: Sun, 22 Aug 2004 22:50:43 GMT

yogesh wrote:
>
> My confusion is why can't I hear any sound underwater?
> Also in case of a tightly closed room,I could hear everything inside
> by merely putting my ear against the room wall from outside.As the
> wall should carry the sound waves more efficiently than that of air.?
>
  Ask yourself where the sources of sounds of which you speak and
  what are the transmission and reflection coeficient between say
  are and water.

  See: http://www.ndt-ed.org/EducationResources/CommunityCollege/Ultrasonics/Physics/reflectiontransmission.htm
  and related pages.