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The mass of an electron is m, charge is e and it is accelerated from rest through a potential difference of V volts. The velocity acquired by electron will be
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Correct option is C
When an electron of charge e and mass m is accelerated with a potential difference of V volts K.E. = eV. ⇒12mv2=eV or v2=2 eVm⇒v=2 eVmSimilar Questions
At 200°C,hydrogen molecule have velocity 2.4 × 105 cm s-1. The de Broglie wavelength in this case is approximately
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