AIPMT MAIN2008Physics-Electric Discharge
AIPMT MAIN 2008 Physics Glow Discharge MCQ Question
Type: MCQ-conceptual-Medium
In the phenomenon of electric discharge through gases at low pressure, the coloured glow in the tube appears as a result of
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
Correct Answer
Option B
Detailed Explanation
The glow is due to the excitation of electrons in the atoms, which emit light when they return to a lower energy state.
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