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COMEDK2012PhysicsAtomic Physics

Optical pumping means transferring electrons

Options

  1. Afrom ground state to motastable state
  2. Bfrom metastable state to a higher excited state
  3. Cfrom a state higher than the metastable state to the metastable state
  4. Dfrom a state lower than the metastable state to a state higher than the metastable state

Correct answer

D. from a state lower than the metastable state to a state higher than the metastable state

Step-by-step solution

Optical pumping is a process in which light is used to raise electrons from a lower energy state in an atom than the metastable state to a higher energy state than the metastable state.

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