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During the transition of electron from state A to state C of a Bohr atom, the wavelength of emitted radiation is 2000 Å and it becomes 6000 Å when the electron jumps from state B to state C. Then the wavelength of the radiation emitted during the transition of electrons from state A to state B is : -

1. 3000 Å
2. 6000 Å
3. 4000 Å
4. 2000 Å

Correct answer: 3000 Å

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