A) \[7.50\times {{10}^{4}}{{s}^{-1}}\]
B) \[4.76\times {{10}^{14}}{{s}^{-1}}\]
C) \[3.15\times {{10}^{15}}{{s}^{-1}}\]
D) \[1.24\times {{10}^{15}}{{s}^{-1}}\]
Correct Answer: D
Solution :
Energy \[={{N}_{A}}hv\] \[495.5=6.023\times {{10}^{23}}\times 6.6\times {{10}^{-34}}\times v\] \[v=\frac{495.5\times {{10}^{3}}J}{6.023\times {{10}^{23}}\times 6.6\times {{10}^{-34}}}=12.4\times {{10}^{14}}\] \[=1.24\times {{10}^{15}}{{s}^{-1}}.\]
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