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Silly Sausage
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Homework Statement
Use the dispersion relation to find the group velocity v_group and phase velocity v_phase.
Homework Equations
omega(k) = [(hbar)k^2]/2m
The Attempt at a Solution
v_group = domega(k)/dk = [hbar]k/m = h/m lambda = p/m = v
This isn't right.
v_phase = omega / k = 2pi f/(2pi/lambda) = f lamda = v
again... is this right?, doesn't look it but as far as I can see there is no mistake in the calc as I have doing it several times already, am I goign wrong in my physics?