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Why did Thomson observe two glowing dots when he put neon gas into a cathode-ray tube?
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14 votes
14 votes
Why did Thomson observe two glowing dots when he put neon gas into a
cathode-ray tube?

User France
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1 Answer

13 votes
13 votes

Answer:

Electrons accelerated to high velocities travel in straight lines through an empty cathode ray tube and strike the glass wall of the tube, causing excited atoms to fluoresce or glow.

User John Crawford
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