Atoms Ques 4
4. The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom, is
(a) $1: 1$
(b) $1:-1$
(c) $1:-2$
(d) $2:-1$
[2018]
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Answer:
Correct Answer: 4.(b)
Solution:
- (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 $=1:-1$
BETA
