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Manipal MET2015PhysicsAtomic Physics

The energy of a hydrogen atom in its ground state is -13.6 eV . The energy of the level corresponding to the quantum number n=5 is

Options

  1. A-5.40 eV
  2. B-0.54 eV
  3. C-8.5 eV
  4. D-2.72 eV

Correct answer

B. -0.54 eV

Step-by-step solution

The energy of the hydrogen atom in nth state is givne by E_n= -13.6 (n^2 ) eV Here, n=5 E= -13.6 (5)^2 eV =-0.54 eV

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