According to Bohrs atomic theory

(I) Kinetic energy of electron is \( \propto \frac{\mathrm{Z}^{2}}{\mathrm{n}^{2}} \).

(II) The product of velocity (v) of electron and principal quantum number \( (\mathrm{n}) \), \( v n \) \( \propto Z^{2} \).

(III) Frequency of revolution of electron in an orbit is \( \propto \frac{Z^{3}}{n^{3}} \).

(IV) Coulombic force of attraction on the electron is \( \propto \frac{Z^{3}}{n^{4}} \).

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Question

According to Bohrs atomic theory

(I) Kinetic energy of electron is \( \propto \frac{\mathrm{Z}^{2}}{\mathrm{n}^{2}} \).

(II) The product of velocity (v) of electron and principal quantum number \( (\mathrm{n}) \), \( v n \) \( \propto Z^{2} \).

(III) Frequency of revolution of electron in an orbit is \( \propto \frac{Z^{3}}{n^{3}} \).

(IV) Coulombic force of attraction on the electron is \( \propto \frac{Z^{3}}{n^{4}} \).

Choose the most appropriate answer the from the options given below

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According to Bohrs atomic theory (I) Kinetic energy of electron is \( \propto \frac{\mathrm{Z}^{2}}{\mathrm{n}^{2}} \). …