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Question

The value of e/m for anode rays is:

A
Same for all gases
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B
Different for different gases
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C
Has a value of 1
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D
Has a value of 1.6×1019
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Solution

The correct option is B Different for different gases
The value of e/m is different for different gases since the value of atomic masses of gases used in the discharge tubes are different. So the mass of anode ray particles also varies.

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