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An electron of mass m and charge e initi...

An electron of mass `m` and charge `e` initially at rest gets accelerated by a constant electric field `E`. The rate of change of de-Broglie wavelength of this electron at time `t` ignoring relativistic effects is

A

`(-h)/(eEt^2)`

B

`(-eht)/(E)`

C

`(-mh)/(eEt^2)`

D

`(-h)/(eE)`

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