MCQOPTIONS
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| 1. |
The ratio of frequencies of the shortest wavelengths of Balmer and Lyman series of hydrogen atom is |
| A. | 4 : 1 |
| B. | 1 : 4 |
| C. | 27 : 5 |
| D. | 5 : 27 |
| Answer» B. 1 : 4 | |