RAJASTHAN ­ PET Rajasthan PET Solved Paper-2011

  • question_answer
    The orbital angular momentum of an electron revolving in p-orbital is

    A)  zero 

    B)  \[\frac{h}{\sqrt{2\pi }}\]

    C)  \[\frac{h}{2\pi }\]

    D)  \[\frac{h}{2\sqrt{2\pi }}\]

    Correct Answer: B

    Solution :

     Orbital angular momentum\[=\sqrt{1(1+1)}\frac{h}{2\pi }\] For p-orbital, \[l=1\] \[\therefore \]Orbital angular momentum\[=\sqrt{l(l+1)}\frac{h}{2\pi }\] \[=\frac{\sqrt{2}h}{2\pi }\] \[=\frac{h}{\sqrt{2}\pi }\]


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