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Atoms and Nuclei question

2005 · Q142
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Atoms and Nuclei question

2005 · Q142

NEETPhysicsAtoms and NucleiMCQ+4 / −1
The total energy of an electron in the first excited state of hydrogen atom is about −-− 3.4 eV. Its kinetic energy in this state is
  1. A
    3.4 eV
  2. B
    6.8 eV
  3. C
    −-− 3.4 eV
  4. D
    −-− 6.8 eV
View written solutionFree

Correct answer: A

Apply Bohr's Atomic model for H-atom

K.E = -T.E = +3.4 eV

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