Question

If the ionization energy of a hydrogen-like Bohr atom is 4 Rydberg, then the wavelengths of radiation emitted when the electron jumps from first excited state to the ground state and the radius of the first orbit of this atom are-

• A. 3.04 Å, 0.53 Å
• B. 304 Å, 0.265 Å
• C. 912 Å, 0.53 Å
• D. 3.04 Å, 0.265 Å

Answer 1

Answer: (B)

304 Å, 0.265 Å

Answer 2

$\frac{1}{\lambda}$ = RZ²$\left( \frac{1}{n_{1}^{2}} - \frac{1}{n_{2}^{2}} \right)$