Q160 / 180 · COMEDK 2012 · Physics

In the case of the Bohr atom model if $E_{K}$ and $U$ are the kinetic and potential energies of an electron in an orbit, then

  • A
    $E_{K}+U=0$
  • B
    $E_{K}-U=0$
  • Correct answer
    C
    $2 E_{K}+U=0$
  • D
    $E_{K}+2 U=0$

Solution

According to Bohr's atomic model, Kinetic energy $K$ or $E_{K}=\frac{U}{2}$ where, $U=$ potential energy. which is negative. $$ \therefore \quad 2 E_{K}+U=0 $$

Hence, the correct answer is option: 'C'.

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