Physics · Laser Physics
The state of population inversion in a LASER is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1an equilibrium state where the number of atoms in the ground state is more than that in the excited state
- 2a non-equilibrium state where the number of atoms in the ground state is less than that in the excited state✓
- 3an equilibrium state where the number of atoms in the ground state is the same as that in the excited state
- 4a non-equilibrium state where all atoms lie in the excited state
Correct answer
a non-equilibrium state where the number of atoms in the ground state is less than that in the excited state
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