Modern Physics 1 Question 52
48. An electron in a hydrogen like atom is in an excited state. It has a total energy of . Calculate
(1996, 3M)
(a) the kinetic energy,
(b) the de-Broglie wavelength of the electron.
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Answer:
Correct Answer: 48. (a)
Solution:
- (a) Kinetic energy of electron in the orbits of hydrogen and hydrogen like atoms
Total energy
(b) The de-Broglie wavelength is given by
Here,