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When the wave of hydrogen atom comes from infinity into the first orbit then the value of wave number is |
109700 cm–1 1097 cm–1 109 cm–1 None of these |
109700 cm–1 |
Wave number $\bar{v}=\frac{1}{\lambda}=R\left[\frac{1}{n_1^2}-\frac{1}{n_2^2}\right] ; n_2=\infty$ and $n_1=1$ $\Rightarrow \bar{v}=R=1.097 \times 10^7 ~m^{-1}=109700 ~cm^{-1}$ |
