A) \[4.16\times {{10}^{-34}}\,J\text{-}s\]
B) \[3.32\times {{10}^{-34}}\,J\text{-}s\]
C) \[1.05\times {{10}^{-34}}\,J\text{-}s\]
D) \[2.08\times {{10}^{-34}}\,J\text{-}s\]
E) None of these
Correct Answer: C
Solution :
Change in the angular momentum, \[\Delta L={{L}_{2}}-{{L}_{1}}\] \[=\frac{{{n}_{2}}h}{2\pi }-\frac{{{n}_{1}}h}{2\pi }\] \[\Delta L=\frac{h}{2\pi }({{n}_{2}}-{{n}_{1}})\] \[=\frac{6.6\times {{10}^{-34}}}{2\times 3.14}(5-4)\] \[=1.05\times {{10}^{-34}}\,J\text{-}s\]
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