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Cathode Ray Experiment

Which one of ...

Question

Which one of the following device makes use of the electrons to strike certain substances to produce fluorescence?

A

Thermionic value

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B

Photoelectric cell

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C

Cathode ray oscilloscope

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D

Electron gun

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Solution

The correct option is A Thermionic value
The device which makes use of the electrons to strike certain substances to produce fluorescence is Cathode ray oscilloscope.

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