A) \[5.0\times {{10}^{14}}Hz\]
B) \[2.5\times {{10}^{7}}Hz\]
C) \[5.0\times {{10}^{7}}Hz\]
D) \[2.5\times {{10}^{14}}Hz\]
Correct Answer: A
Solution :
\[\nu =\frac{c}{\lambda }=\frac{3\times {{10}^{8}}\,m{{s}^{-1}}}{600\times {{10}^{-9}}m}=5.0\times {{10}^{14}}Hz\].
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