The specific charge of cathode rays

depend on the nature of the gas

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depend on the material of the discharge tube

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depend on the potential difference between cathode and anode

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is a universal constant

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Solution

The correct option is D is a universal constant
Cathode rays (also called an electron beam or e-beam) are streams of electrons observed in vacuum tubes.
Charge = − e
Specific Charge $= \frac{C h a r g e}{M a s s} = \frac{e}{m} = C o n s t a n t$

Hence, option $(D)$ is a universal constant is correct Answer.

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Similar questions

(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?

(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.

Q. Give reasons 1. The mass and charge of the cathode ray particles does not depend on the nature of the gas taken in the discharge tube. 2. The mass and charge of the anode ray particles depends on the nature of gas taken in the discharge tub

Q. 90.How does the specific charge of particles of cathode rays independent of nature of gas taken in the discharge tube but particles of anode rays depend

Q. In J.J. Thomson's experiment the specific charge of an electron

(e / m)

is related to potential difference

(V)

between the cathode and the anode as

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The specific charge of cathode rays

The correct option is D is a universal constantCathode rays (also called an electron beam or e-beam) are streams of electrons observed in vacuum tubes.Charge = − e​Specific Charge =ChargeMass=em=ConstantHence, option (D) is a universal constant is correct Answer.