A) increased
B) decreased
C) remained unchanged
D) become zero
Correct Answer: A
Solution :
An electron possesses some potential energy because it is found in the field of nucleus. Potential energy of electron in 11th orbit of radius \[{{r}_{n}}\] is given by \[U=\frac{k(Ze)(-e)}{{{r}_{n}}}=\frac{-kZ{{e}^{2}}}{{{r}_{n}}}\] As n increases PE increases KE decreases.
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