Multiple choice general knowledge science & technology

Color of light emited by Helium gas is..

  1. Pinkish-red

  2. Green

  3. Sky Blue

  4. Lavender
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A Correct answer
Explanation

Helium gas, when electrically excited, emits light in the pinkish-red to yellow-orange range depending on the pressure and conditions. The characteristic helium discharge color is often described as pinkish-red or peach-colored due to the combination of spectral lines including red, yellow, and green wavelengths. This is visible in helium-neon lasers and discharge tubes.

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