which colou is create when cathode ray pass
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Modern vacuum tubes use thermionic emission, in which the cathode is made of a thin wire filament which is heated by a separate electric current passing through it.
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Modern vacuum tubes use thermionic emission, in which the cathode is made of a thin wire filament which is heated by a separate electric current passing through it.
if the answer is best for you then please give me the brainlist answer
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greenish glow colour is created when cathode ray are passed
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