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A particle initially at rest having char...

A particle initially at rest having charge `q` coulomb, `&` mass `m kg` is accelerated by a potential difference of `V` volts. What would be its `K.E. & ` de broglie wavelength respectively after acceleration.

A

`qV,(h)/(sqrt(2qVm))`

B

`(h)/(sqrt(2qVm)),qV`

C

`qV,(h)/(mV)`

D

`(h)/(mV),qV`

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