Due to excitation of electrons in atoms.
In the phenomenon of electric discharge through gases at low pressure, the coloured glow in the tube appears as a result of
NEET UG 2008 — Physics Modern Physics
2008mcqeasy
In the phenomenon of electric discharge through gases at low pressure, the coloured glow in the tube appears as a result of
Official previous-year question
Held on 30 Apr 2008 · Verified 9 Jul 2026.
Options
- A
Collision between different electrons of the atoms of the gas
- B
Excitation of electrons in the atoms
- C
Collision between the atoms of the gas
- D
Collisions between the charged particles emitted from the cathode and the atoms of the gas
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