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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2008
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Q)

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


( A ) collisions between the charged particles emitted from the cathode and the atoms of the gas
( B ) excitation of electrons in the atoms
( C ) collision between different electrons of the atoms of the gas
( D ) collision between the atoms of the gas

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