Two insulating plates, shown in the figure, are thi uniformly .charged in such a way that the potentia difference between them is `V_{3}-V_{1}=20 V` (i.e., plate 2 is at a higher potential). The plates are separated by distanc d = 0.1 m and can be treated as infinitely large. Al clectron is roleased from rest on the inner surface of plate 1. Its speed when it hits plate 2 is `2.65 xx 10^n m/s ` Find `n` `(q=1.6 xx 10^{-19} C, m_{0}=9.11 xx 10^{-11} kg)`
'(##CEN_KSR_PHY_JEE_CO19_E01_009_Q02##)' figure

Answer

6