Answer:
Any gas taken in the discharge tube always produces
cathode rays haying electrons with same mass and charge. These electrons are
produced due to their knock out from the atoms of the gas inside; This shows
that the cathode rays must be originating from the cathode which are hitting
the atoms of the gas to knock out electrons from them.
Anode rays consist of positively charged particles with
mass nearly equal to the mass of the atoms of the gas. These are again produced
due to knock out of electrons from the atoms of the gas by cathode rays
converting the atoms into positive ions.
Thus, these positive ions are produced in the space between cathode and
anode and do not originate from the anode.
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