1. Tardigrade
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  4. An electron of mass me, initially at rest, moves through a certain distance in a uniform electric field in time t1. A proton of mass mp, also, initially at rest, takes time t 2 to move through an equal distance in this uniform electric field. Neglecting the effect of gravity, the ratio t 2 / t 1 is nearly equal to :-

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Q. An electron of mass $m_{e}$, initially at rest, moves through a certain distance in a uniform electric field in time $t_{1}$. A proton of mass $m_{p}$, also, initially at rest, takes time $t _{2}$ to move through an equal distance in this uniform electric field. Neglecting the effect of gravity, the ratio $t _{2} / t _{1}$ is nearly equal to :-

Solution:

$S =\frac{1}{2} \frac{ eE }{ m _{ e }} t _{1}^{2}$
$=\frac{1}{2} \frac{ eE }{ m _{ p }} t _{2}^{2}$
$m _{ e } t _{2}^{2}= m _{ p } t _{1}^{2}$