A) \[3\times {{10}^{-15}}\,\,J\]
B) \[4\times {{10}^{-17}}\,\,J\]
C) \[3\times {{10}^{-19}}\,\,J\]
D) \[3\times {{10}^{-21}}\,\,J\]
Correct Answer: C
Solution :
\[{{E}_{k}}=6.2-4.2=2\,\,eV\] \[=2\,\,eV=2\times 1.6\times {{10}^{-19}}\] \[=3.2\times {{10}^{-19}}\] \[\approx 3\times {{10}^{-19}}\]You need to login to perform this action.
You will be redirected in
3 sec