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Bohr model is a system consisting of sma...

Bohr model is a system consisting of small, dense nucleus surounded by orbting electrons. The electrons travel in defined circular orbits around the nucleus for which orbital angular momentum is an itnegral multiple of `h/(2pi)`. While rotating in allowed orbits the electrons does not raidate energy. Electromagneitc radiations are emitted when the electrons jumps from a higher orbit `(E_(n_i))` to a lower orbit `(E_(n_f))`
The radius of first orbit out of the allowed of its is:

A

`(epsilon_0h)/(pime^2)`

B

`(pime^2)/(epsilon_0h)`

C

`(epsilon_0h^2)/(pime^2)`

D

`(epsilon_0h^2)/(pime)`

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