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NEET2008PhysicsDual Nature of MatterActual

In the phenomenon of electric discharge through gases at low pressure, the coloured glow in the tube appears as a result of

Options

  1. Aexcitation of electrons in the atoms
  2. Bcollision between the atoms of the gas
  3. Ccollisions between the charged particles emitted from the cathode and the atoms of the gas
  4. Dcollision between different electrons of the atoms of the gas

Correct answer

C. collisions between the charged particles emitted from the cathode and the atoms of the gas

Step-by-step solution

The discharge of electricity through rarefied gases is an interesting phenomenon which can be systematically studied with the help of a discharge tube. In discharge tube collisions between the charged particles emitted from the cathode and the atoms of the gas results to the coloured glow in the tube.

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