Q.

The e/m ratio of cathode rays is  x unit, when hydrogen is filled in the discharge tube. What will be the e/m  ratio of cathode rays when oxygen O2  is filled in it ?

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a

x unit

b

x2unit

c

2x  unit

d

x4 unit

answer is A.

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Detailed Solution

e/m ratio of cathode rays are independent of nature of a gas
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