A) 700 m/s
B) 1000 m/s
C) 1400 m/s
D) 2800 m/s
Correct Answer: C
Solution :
[c] \[{{P}_{e}}={{P}_{ph}}\] \[mv=\frac{hc}{\lambda }\] \[v=\frac{hc}{\lambda \times m}\] \[=\frac{6.67\times {{10}^{-34}}\times 3\times {{10}^{8}}}{5200\times {{10}^{-10}}\times 9.1\times {{10}^{-31}}}\] \[\simeq \,1400m/s\]You need to login to perform this action.
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