November 26, 2015

Homework Help: Physics urgent!!!!

Posted by Vanda on Friday, April 8, 2011 at 3:40pm.

Electrons in a beam incident on a crystal at an angle of 30ͦ have kinetic energies ranging from zero
to a maximum of 5500 eV. The crystal has a grating space d=0.5 Aͦ, and the reflected electrons are
passed through a slit .Find the velocities of the electrons passing through the slit. How many are these

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