9th Class Science Structure of the Atom Question Bank Atomic Structure Formative Subjective Problems

  • question_answer
    Find the angular momentum of first orbit of hydrogen atom.

    Answer:

    Angular momentum \[(mvr)=L=?\] \[n=1\] We know that \[mvr=\frac{nh}{2\pi }\]and the value of \[h=6.625\times {{10}^{34}}Js\] \[\Rightarrow \]\[L=\frac{1\times 6.625\times {{10}^{-34}}}{2\times 3.14}\approx {{10}^{-34}}Js\]


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