blackpalm
Sep 15, 2010, 06:39 PM
I guess we must use c=lambda*frequency...
Unknown008
Sep 15, 2010, 10:38 PM
Actually... no.
c = f\lambda
is used to find the frequency or wavelength of an electromagnetic wave if either the wavelength or the frequency is known.
Here, I guess that you are looking for the amount of heat that the water gains.
This is given by:
Q = mc\theta
Q is the amount of heat in joules
m is the mass of the substance
c is the specific heat capacity of water (which you must be given)
and theta is the change in temperature in Kelvin.
Can you work this out now? :)