MCQOPTIONS
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| 1. |
An electron makes a transition from orbit n = 4 to the orbit n = 2 of a hydrogen atom. The wave number of the emitted radiations (R = Rydberg's constant) will be |
| A. | \[\frac{16}{3R}\] |
| B. | \[\frac{2R}{16}\] |
| C. | \[\frac{3R}{16}\] |
| D. | \[\frac{4R}{16}\] |
| Answer» D. \[\frac{4R}{16}\] | |