A) 25%
B) 50%
C) 100%
D) 200%
Correct Answer: B
Solution :
Velocity of electron in nth shell \[{{v}_{n}}\propto \frac{1}{n}\] So, \[\frac{{{v}_{2}}}{{{v}_{1}}}=\frac{1}{2},\] ie, \[{{v}_{2}}=\frac{{{v}_{1}}}{2}\] \[\Delta v={{v}_{1}}-{{v}_{2}}=\frac{{{v}_{1}}}{2}\] Hence, % change \[=50%\]You need to login to perform this action.
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