Atoms - Result Question 10

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11. The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom, is

======= ####11. The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom, is

3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed:content/english/neet-pyq-chapterwise/physics/atoms/atoms—result-question-10.md (a) $1: 1$

(b) $1:-1$

(c) $1:-2$

(d) $2:-1$

[2018]

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Answer:

Correct Answer: 11. (b)

Solution:

  1. (b) In a Bohr orbit of the hydrogen atom

Kinetic energy,

$k=\frac{k z e^{2}}{2 r_n}$

Total energy, $E=\frac{-k z e^{2}}{2 r_n}$

So, Kinetic energy : total energy $=1:-1$