Question 04

Which of the followig statement is not correct about the characteristics of cathode rays ?

(a) The start from the cathode and move towards the anode

(b) They travel in straight line in the absence of an external eletrical or magnetic field

(c) Characteristics of cathode rays do not depend upon the material of elctrodes in cathode ray tube

(d) Characteristics of cathode rays depend upon the nature of gas present in the cathode ray tube

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Solution

Option d is the correct answer.

Cathode rays consist of negatively charged material particles called electrons. It was discovered by William crookes. The characteristics of cathode rays do not depend upon the mateiral of electrodes and the nature of the gas present in the cathode ray tube.

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Q. Assertion :The characteristics of cathode rays do not depend upon the material of electrodes and the nature of the gas present in the cathode ray tube. Reason: Cathode rays consist of negatively charged particles, called electrons.

The characteristics of cathode rays do not depend upon material of electrodes.

Q. Why do cathode rays do not depend upon the material of cathode and anode or the type of gas taken in the discharge tube while the canal rays depend?

(a) What are cathode rays? What is the nature of charge on cathode rays?

(b) Explain how, cathode rays are formed from the gas taken in the discharge tube.

(a) What are the cathode rays? What is the nature of charge on cathode rays?
(b) Explain how cathode rays are formed from the gas taken in the discharge tube.
(c) What conclusion is obtained from the fact that all the gases form cathode rays?

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Option d is the correct answer. Cathode rays consist of negatively charged material particles called electrons. It was discovered by William crookes. The characteristics of cathode rays do not depend upon the mateiral of electrodes and the nature of the gas present in the cathode ray tube.

Option d is the correct answer.

Cathode rays consist of negatively charged material particles called electrons. It was discovered by William crookes. The characteristics of cathode rays do not depend upon the mateiral of electrodes and the nature of the gas present in the cathode ray tube.