Gujarati
12.Atoms
normal

The ratio of speed of an electron in ground state in Bohrs first orbit of hydrogen atom to velocity of light in air is

A

$\frac{{{e^2}}}{{2{\varepsilon _0}hc}}$

B

$\frac{{2{e^2}{\varepsilon _0}}}{{hc}}$

C

$\frac{{{e^3}}}{{2{\varepsilon _0}hc}}$

D

$\frac{{2{\varepsilon _0}hc}}{{{e^2}}}$

Solution

The ratio of speed of an electron in ground state in Bohrs first orbit of hydrogen atom to velocity of light in air is

$\frac{e^{2}}{2 \varepsilon_{0} h c}$

Standard 12
Physics

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