Question

An electron of mass m and charge e initially at rest gets accelerated by a constant electric Field E. Find the rate of change of de-Broglie wavelength of this electron at time t ?(ignore relativistic effects)

Answer 1

Answer:

I don't know what is the answer to

Answer 2

Answer:

-h/eEt^2

Explanation:

F = eE

ma =eE

a = eE/m

Now v = u+at = 0+eEt/m

mv = eEt

h/λ =eEt

λ = h/eEt

dλ/dt = -h/eEt^2