A) 3 h
B) 1.5 h
C) 9 h
D) \[2\frac{h}{\pi }\]
Correct Answer: A
Solution :
Angular momentum, \[i={{n}_{e}}{{q}_{e}}+{{n}_{p}}{{q}_{p}}\] \[=3.13\times {{10}^{15}}\times 1.6\times {{10}^{-17}}\]
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