Question

The ratio of elm for a cathode ray:

(a) varies with a gas in a discharge tube
(b) is fixed
(c) varies with different electrodes
(d) is maximum if hydrogen is taken​

Answer 1

option (b) is the correct answer to this particular question.

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Answer 2

Answer:

Option b

Explanation:

In cathode rays e/m is independent of the nature of the gas and the electrode used.

But in anode rays it is dependent on the nature of gas..

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