Question

Which of the following statement is not correct about the characteristics of cathode rays?
(i) They start from the cathode and move towards the anode.
(ii) They travel in straight line in the absence of an external electrical or magnetic field.
(iii) Characteristics of cathode rays do not depend upon the material of electrodes in cathode ray tube.
(iv) Characteristics of cathode rays depend upon the nature of gas present in the cathode ray tube.





please answer it​

Answer 1

Answer:

Option (iii) is the correct answer .

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Answer 2

1. 4 is correct becouse >
2. The gas is present in tube is not matter that wich gas is present in tube but the presser is important that how much presser in the tube