Thomson showed that the stream of particles in cathode ray tube is made up of small particles which are a component of the atom and is:
A
neutral
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B
negatively charged
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C
positively charged
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D
both A and B
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Solution
The correct option is B negatively charged Thomson discovered electrons using the cathode ray tube. It has been
previously seen that if a electric current is passed through a vacuum
tube, a glowing stream is formed. Thomson found that the
mysterious glowing stream would bend toward a positively charged
electric plate. He concluded that the stream is negatively charged. He also concluded based on his experiments that the negative stream has negatively charged particles that he called corpuscles (later renamed electrons).