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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. | |