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.
Answers
Answered by
15
Answer:
answer is iv reason the cathode Rays are independent of nature of the gas in discharge tube
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9
Statement IV stating that Characteristics of cathode rays depend upon the nature of gas present in the cathode ray tube is false characteristic of the cathode rays.
Explanation:
- The reason for considering statement IV as false because the characteristics of cathode rays are independent upon the nature of gas present in the tube.
- The rays which are emitted from the cathode in the cathode tube are called cathode rays.
- The rays which are emitted in the discharge tube are electrons that are produced through the ionization of cathode due to collision of the positive ions.
- Hence it is inferred that cathode rays are not dependent on the nature of gas present in the cathode ray tube.
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