Question

distance between charged parallel plates is d and electron proton pair is released somewhere in the gap between the place and it is found that proton reaches the negative place at the same time as the electron reaches the positive plate . at what distance from the negative plate was the pair released. consider only electric forces mass of the electron is Me and mass of proton is Np . electric field between the plates is​

Answer 1

refer with the attachment....to get the ans.

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