alleryStart learning →Why does a rarefied gas in a glow tube emit only discrete wavelengths?
AAtoms are far apart and radiate alone
BMolecules oscillate together in step
CThe gas is held at very high pressure
DAtoms collide with each other often
Answer & Solution
Correct answer: A. Atoms are far apart and radiate alone
With large spacing between atoms, the light comes from individual atoms rather than interacting neighbours.
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