Atomic Physics Question 3
Question 3 - 2024 (27 Jan Shift 1)
The radius of third stationary orbit of electron for Bohr’s atom is R. The radius of fourth stationary orbit will be:
(1) $\frac{4}{3} \mathrm{R}$
(2) $\frac{16}{9} R$
(3) $\frac{3}{4} R$
(4) $\frac{9}{16} \mathrm{R}$
Show Answer
Answer: (2)
Solution:
$r \propto \frac{n^{2}}{Z}$
$\frac{r_{4}}{r_{3}}=\frac{4^{2}}{3^{2}}$
$r_{4}=\frac{16}{9} R$
