stunner5000pt
Nov4-04, 10:32 PM
A photon of frequency \nu collides elastically with an electron at rest. The phton loses half its nergy in the collision an its final path makes a 60 degree angle with the original path. What is \nu ? what sort of photon is this?
Well this is obviously the compton effect
\lambda_{1} - \lambda = \frac{h}{mc} (1 - Cos \phi ) = 1.21 * 10^12
Then Also the photon lost half it's energy so
\frac{h \nu}{2} = \frac{h \nu '}{2}
and figure that 2 \lambda = \lambda '
and then lambda = 1.21 * 10^12?
then \nu = 4.04 * 10^21 Hz
which is a gamma ray?
am i right in this? i have my doubts about the lambdas
Also i have another thread i need some help would greatly appreciate with both! Thank you!!
http://physicsforums.com/showthread.php?t=51474
Well this is obviously the compton effect
\lambda_{1} - \lambda = \frac{h}{mc} (1 - Cos \phi ) = 1.21 * 10^12
Then Also the photon lost half it's energy so
\frac{h \nu}{2} = \frac{h \nu '}{2}
and figure that 2 \lambda = \lambda '
and then lambda = 1.21 * 10^12?
then \nu = 4.04 * 10^21 Hz
which is a gamma ray?
am i right in this? i have my doubts about the lambdas
Also i have another thread i need some help would greatly appreciate with both! Thank you!!
http://physicsforums.com/showthread.php?t=51474