Physics, asked by mjsingh6477, 10 months ago

Which one of the following devices makes use of the electrons to strike certain substances to produce fluorescence(a) Thermionic valve(b) Photoelectric cell(c) Cathode ray oscilloscope(d) Electron gun

Answers

Answered by divyamani22
2
a firmenich wave is used to electron strike certain substance to produce fluorescence
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