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1. |
In Li++, electron in first Bohr orbit is excited to a level by a radiation of wavelength λ. When the ion gets deexcited to the ground state in all possible ways (including intermediate emissions), a total of six spectral lines are observed. What is the value of λ?(Given: h = 6.63 × 10-34 Js; c = 3 × 108 ms-1) |
A. | 11.4 nm |
B. | 9.4 nm |
C. | 12.3 nm |
D. | 10.8 nm |
Answer» E. | |