Question

13. Which of the following statement is not correct about the characteristics of
cathode rays?
1) They start from the cathode and move towards the anode.
2) They travel in straight line in the absence of an external electrical or
magnetic field.
3) Characteristics of cathode rays do not depend upon the material of
electrodes in cathode ray tube.
4) Characteristics of cathode rays depends upon the nature of gas present
in the cathode ray tube.
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Answer 1

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3) Characteristics of cathode rays do not depend upon the material of