A) \[1.6\times {{10}^{-21}}\text{J}\]
B) \[1.6\times {{10}^{-23}}\text{J}\]
C) \[1.6\times {{10}^{-10}}\text{J}\]
D) \[1.6\times {{10}^{-16}}\text{J}\]
Correct Answer: D
Solution :
Here: Potential difference\[V=1000\text{ }volt\] The kinetic energy of an electron \[=1\,eV=1.6\times {{10}^{-19}}J\] Hence, the kinetic energy of the electron is \[=1000V\] \[=1.6\times {{10}^{-19}}\times 1000\] \[=1.6\times {{10}^{-16}}J\]
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