Positive rays are produced when _ strike the molecules of a gas in a discharge tube.
Correct answer: D. High-speed electrons
- A. Low-speed neutrons
- B. High-speed neutrons
- C. Low-speed electrons
- D. High-speed electrons
Explanation
In the Discharge Tube Experiment, high-speed electrons transition from the metal of the cathode and go towards the anode. It may collide with gas molecules present in the tube. Out of many possibilities, one being the gas molecule may lose an electron (pushed out) upon collision, forming a stream of positively charged particles, also known as anode rays. Hence, the particles responsible for the production of positive rays are "high-speed electrons".
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