A) \[2.33\times {{10}^{4}}\,c{{m}^{-1}}\]
B) \[2.32\times {{10}^{-4}}\,c{{m}^{-1}}\]
C) \[0.233\times {{10}^{3}}\,c{{m}^{-1}}\]
D) \[23.3\times {{10}^{5}}\,c{{m}^{-1}}\]
Correct Answer: A
Solution :
We know that wave number \[(\bar{v})=\frac{1}{\text{wavelength}}\] \[=\frac{1}{430\,nm}=\frac{1}{430\times {{10}^{-7}}cm}\] \[=2.33\times {{10}^{4}}c{{m}^{-1}}\]
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