An electron is in an excited state in a hydrogen like atom. It has a total energy of –3.4…
Physics · Class 12 · CBSE — Atoms
An electron is in an excited state in a hydrogen like atom. It has a total energy of –3.4 eV. The kinetic energy of the electron is E and its de Broglie wavelength is λ. Then
- E = 6.8 eV, l = 6.6 × 10–10 m
- E = 3.4 eV, l = 6.6 × 10–10 m
- E = 3.4 eV, l = 6.6 × 10–11 m
- E = 6.8 eV, l = 6.6 × 10–11 m
Answer
(B) E = 3.4 eV, l = 6.6 × 10 –10 m
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