Rays traveling from cathode to anode are known as

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Solution

Cathode rays
Cathode rays are emitted from the cathode (negative electrode) in the discharge tube.
Cathode rays are made up of small particles called electrons which are negatively charged.
They move towards a positively charged anode.
JJ Thomson used these cathode rays in the discharge tube to discover the negatively charged particles called electrons.
Hence, cathode rays travel from cathode to anode in the discharge tube.

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