A) 3 R
B) 2.25 R
C) 9 R
D) \[\frac{R}{3}\]
Correct Answer: B
Solution :
\[r\propto {{n}^{2}}\] Þ \[\frac{{{r}_{(n=2)}}}{{{r}_{(n=3)}}}=\frac{4}{9}\] Þ \[{{r}_{(n=3)}}=\frac{9}{4}R=2.25\,R\]
You need to login to perform this action.
You will be redirected in
3 sec
