AIPMT PRELIMS 2009 Physics Hydrogen Spectrum MCQ Question
The ionization energy of the electron in the hydrogen atom in its ground state is 13.6 eV. The atoms are excited to higher energy levels to emit radiations of 6 wavelengths. Maximum wavelength of emitted radiation corresponds to the transition between:
n = 3 to n = 1 states
n = 2 to n = 1 states
n = 4 to n = 3 states
n = 3 to n = 2 states
Correct Answer
Detailed Explanation
The maximum wavelength corresponds to the smallest energy difference, which is between n = 4 and n = 3 states. This transition emits the longest wavelength.
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