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Cathode Ray Experiment

In a cathode ...

Question

In a cathode ray tube, what is the effect on the beam of particles if the anode voltage is increased ?

A

Kinetic Energy of electron beam increase

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B

Rate of electron emission increase

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C

Kinetic energy of electron beam remains unchanged

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D

Rate of electron emission decrease

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Solution

The correct option is A Kinetic Energy of electron beam increase
Electrons emitted by the cathode are attracted to the focusing anode if the anode voltage is increased.
Thus, Kinetic Energy of electron beam increase.

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