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KCET2018PhysicsAtomic Physics

The total energy of an electron revolving in the second orbit of hydrogen atom is

Options

  1. A(-13.6 ev )
  2. B( -1.51 ev )
  3. C( -3.4 ev )
  4. DZero

Correct answer

C. ( -3.4 ev )

Step-by-step solution

Total energy of an electron revolving in nth orbit of hydrogen atom is given as ( E_ n = -13.6 n² eV ) For second orbit, ( n=2 ), energy is ( E₂= -13.6 2² =-3.4 e V )

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