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(a) A deutron and an alpha-particle are ...

(a) A deutron and an `alpha`-particle are placed in uniform electric field. Find the ratio of their accelerations.
(b) A charged particle `(q,m)` is placed in uniform electric field `E`. Find its kinetic energy after time `t`.
(c ) An electron `(-e , m)` is given velocity `v_(0)` along a uniform electric field `E`. After how much time , electron will return to its original position ?

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