Multiple choice general knowledge science & technology

An excited atom decays to its ground state and emits a photon of green light. If instead, the atoms 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

When an atom decays to an intermediate state instead of directly to ground state, it emits a photon with less energy. Red light has less energy than green light (longer wavelength), while blue and violet have more energy. White light contains all colors.

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