Re: Wave Question

[DEVARAKONDA VENKATA NARAYANA SARMA <narayana@HD1.DOT.NET.IN>]

At 05:59 PM 9/10/99 -0700, you wrote:
> You must look at the whole system. Energy is a system state function;
> there is no reason to expect that it will be conserved locally. If you
> consider the intensity which impinges on all the walls of the container
> you will account for all of the energy radiated. After all, there are
> also some places where the interference is destructive and the intensity
> is nearly zero.

Perhaps we can also say that the intensity should always be calculated
from the resultant amplitude obtained by adding individual amplitudes
giving due consideration to the phase and not by adding individual
intensities.
Intensity should be always via amplitude.

regards,

sarma.