Multiple choice general knowledge science & technology

An excited atom decays to its ground state and emits a photon of green light. If instead the atom decays to an intermediate state, then the light emitted could be

  1. Violet

  2. White

  3. Blue

  4. Red
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

If an atom decays to an intermediate state instead of the ground state, the energy difference is smaller, so the emitted photon has lower frequency and longer wavelength. Red light has lower energy than green light.

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