Correct Answer: The characteristics of cathode rays depend upon the nature of the gas present in the cathode-ray tube.
Explanation:
Cathode ray is a beam of electrons emitted from the cathode of a vacuum tube. It is invisible. Cathode ray tubes are also found in televisions and computer monitors. Since cathode ray is a beam of electrons and all electrons are identical, charge to mass ratio is same for all the gases and does not depend on the nature of gas.
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