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Hydrogen atoms in very high quantum state have been observed in radio astronomy. The wavelength of radiation emitted when hydrogen atom makes transiti

Monjur Alahi

Hydrogen atoms in very high quantum state have been observed in radio astronomy. The wavelength of radiation emitted when hydrogen atom makes transition from `n = 110` state to `n = 109` state is `lambda = 5.8 cm`. Imagine a He atom in which one of the electrons has been excited to `n = 110` state. What will be wavelength of emitted radiation if the electron makes transition to `n = 109`?


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Salim Ahmed Kawsar

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Correct Answer - `5.8 cm`

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