Home Physics Atomic and Nuclear Physics Mix A set of atoms in an excited state decays
Physics Atomic and Nuclear Physics Mix MCQ (Single Correct)

A set of atoms in an excited state decays

A
In general to any of the states with lower energy
B
Into a lower state only when excited by an external electric field
C
All together simultaneously into a lower state
D
To emit photons only when they collide

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The correct answer is:
A

A set of atoms in an excited state decays in general to any of the states with lower energy which is more stable than the excited state.

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