Atoms And Nuclei Question 92
Question: In Bohr’s model, if the atomic radius of the first orbit is $ r_{0} $ , then the radius of the fourth orbit is [CBSE PMT 2000]
Options:
A) $ r_{0} $
B) $ 4r_{0} $
C) $ r_{0}/16 $
D) $ 16r_{0} $
Show Answer
Answer:
Correct Answer: D
Solution:
$ r_{n}\propto n^{2}\Rightarrow \frac{r_{4}}{r_{1}}={{( \frac{4}{1} )}^{2}}=\frac{16}{1}\Rightarrow r_{4}=16\ r_{1}\Rightarrow r_{4}=16\ r_{0} $
