MCQOPTIONS
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| 1. |
Hydrogen atom emits blue light when it changes from n = 4 energy level to the n = 2 level. Which colour of light would the atom emit when it changes from the n = 5 level to the n = 2 level [KCET 1993] |
| A. | Red |
| B. | Yellow |
| C. | Green |
| D. | Violet |
| Answer» E. | |