Same chapter3 marksDifficulty: Medium
Find the wavelength of the radiation emitted when an electron in a hydrogen atom falls from the third orbit to the second. Take the Rydberg constant as 1.097 × 107 m−1.
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3 marksDifficulty: Medium
Calculate the energy of an electron in the second orbit of a hydrogen atom.
Original Khojo Papers practice question — not from a past board paper.
Answer
−3.4 eV
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
En = −13.6/n2 eV, so for n = 2 the energy is −13.6/4 = −3.4 eV.
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