Cathode ray is the flow of electrons observed in vacuum tubes. An evacuated glass tube is equipped with two electrodes and a voltage is applied at very low pressure(10
−3
torr) the glass opposite to the negative electrode is observed to glow. So the correct option is C
Answers & Comments
Answer:
Correct option is
C
very low pressure (10
−3
torr)
Cathode ray is the flow of electrons observed in vacuum tubes. An evacuated glass tube is equipped with two electrodes and a voltage is applied at very low pressure(10
−3
torr) the glass opposite to the negative electrode is observed to glow. So the correct option is C
Explanation:
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