InterviewSolution
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InterviewSolution
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31 The wavelength (in A) of an emission lineobtained for Li during arn electronic transitionfrom n, 2 to n, 1 is (R Rydberg constant)\begin{array}{ll}{\text { (1) } \frac{3 R}{4}} & {\text { (2) } \frac{27 R}{4}} \\ {\text { (3) } \frac{4}{38}} & {\text { (4) } \frac{4}{27 R}}\end{array}n ha assumed to be |
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