12th Class Physics Sample Paper Physics Olympiad Sample Paper-3

  • question_answer
    In the Bohr model of a hydrogen atom, the centripetal force is furnished by the coulomb attraction between the proton and the electron. If \[{{a}_{0}}\]is the radius of the ground state orbit, m is the mass and e is the charge on the electron and \[{{\varepsilon }_{0}}\] is the vacuum permittivity, the speed of the electron is

    A)  \[0\]                

    B)  \[\frac{e}{\sqrt{{{\varepsilon }_{0}}{{a}_{0}}m}}\]

    C)  \[\frac{e}{\sqrt{4\pi {{\varepsilon }_{0}}{{a}_{0}}m}}\]

    D)  \[\sqrt{\frac{4\pi {{\varepsilon }_{0}}{{a}_{0}}m}{e}}\]            

    Correct Answer: C

    Solution :

    Not Available  

You need to login to perform this action.
You will be redirected in 3 sec spinner