J & K CET Engineering J and K - CET Engineering Solved Paper-2008

  • question_answer
    The angular momentum (L) of an electron moving in a stable orbit around nucleus is

    A)  half integral multiple of \[\frac{h}{2\pi }\]

    B)  integral multiple of h

    C)  integral multiple of \[\frac{h}{2\pi }\]

    D)  half integral multiple of h

    Correct Answer: C

    Solution :

    For an electron to remain orbiting around the nucleus, the .angular momentum (L) should be an integral multiple of \[h/2\pi \]. ie,          \[mvr=\frac{nh}{2\pi }\] where n = principle quantum number of electron, and h = Planck's constant


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