- #1
*Alice*
- 26
- 0
"Electrons are accelerated by a potential of 350kV in an electron microscope. Calculate the de Broglie wavelength of those electrons taling relativistic effects into account"
I attempted the following:
W = W(kin) = 350keV
now
[tex]W(kin)= (1-gamma)mc^2 [/tex]
so, now one could solve for gamma and find the velocity of the particle.
afterwards [tex] p=m*v=h/lambda [/tex]
HOWEVER: I get a negative result in a root when I try to solve for v. Therefore I think that my energy formula must be wrong (I already excluded calculation errors). Can anyone see it?
I attempted the following:
W = W(kin) = 350keV
now
[tex]W(kin)= (1-gamma)mc^2 [/tex]
so, now one could solve for gamma and find the velocity of the particle.
afterwards [tex] p=m*v=h/lambda [/tex]
HOWEVER: I get a negative result in a root when I try to solve for v. Therefore I think that my energy formula must be wrong (I already excluded calculation errors). Can anyone see it?