MCQOPTIONS
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| 1. |
The ionization potential of H-atom is 13.6 V. When it is excited from ground state by monochromatic radiations of 970.6 A, the number of emission lines will be (according to Bohr's theory) |
| A. | 10 |
| B. | 8 |
| C. | 6 |
| D. | 4 |
| Answer» D. 4 | |