A) \[{{2}^{n}}-1\]
B) \[u={{e}^{x}}\sin x\]
C) \[v={{e}^{x}}\cos x\]
D) \[v\frac{du}{dx}-u\frac{dv}{dx}={{u}^{2}}+{{v}^{2}}\]
Correct Answer: B
Solution :
In wave mechanics, the magnitude of angular momentum of an electron is\[\Rightarrow \]where, 1 can have the values 0,1, 2..... .(n + 1) n is principal quantum number.
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