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MMLU-Pro / 9413 / Positronium is an atom formed by an electron and a positron (antielectron). It…

Problem

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question

Positronium is an atom formed by an electron and a positron (antielectron). It is similar to the hydrogen atom, with the positron replacing the proton. If a positronium atom makes a transition from the state with n=3 to a state with n=1, the energy of the photon emitted in this transition is closest to

category

physics

options

  1. 6.0 e
  2. 6.8 eV
  3. 12.2 eV
  4. 13.6 eV

src

ori_mmlu-college_physics

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