A) \[\frac{25}{4}km/h\]
B) \[5km/h\]
C) \[\frac{30}{4}km/h\]
D) None of the above
Correct Answer: A
Solution :
Acceleration of the system, \[n=\frac{It}{e}=\frac{3.2\times {{10}^{-3}}\times 1}{1.6\times {{10}^{19}}}\] \[=2\times {{10}^{16}}\] Equation of motion for \[{{V}_{0}}=\frac{{{K}_{\max }}}{e}=\frac{4eV}{e}\] \[=4V\] \[{{f}_{o}}+{{f}_{e}}=44cm\] \[m=\frac{{{f}_{o}}}{{{f}_{e}}}=10\,\,OR\,\,{{f}_{0}}=10{{f}_{e}}\] \[10{{f}_{e}}+{{f}_{e}}=44cm\,\,\,OR\,\,{{f}_{e}}=4cm\]You need to login to perform this action.
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