QQuestionPhysics
QuestionPhysics
What evidence from the cathode ray tube experiment supports the claim that electrons have a negative charge?
SELECT ALL THAT APPLY
A. The cathode ray cast a shadow on the tube.
B. The cathode ray bent away from a negatively charged plate.
C. The cathode ray bent toward a positively charged plate.
D. The cathode ray produced heat that caused a wheel to turn.
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Answer
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Step 1I'll solve this step by step, explaining the key evidence from the cathode ray tube experiment that supports electrons having a negative charge.
Step 2: Understanding the Cathode Ray Tube Experiment
The cathode ray tube experiment, conducted by J. J. Thomson in the late 19th century, was crucial in discovering the electron. In this experiment, a sealed glass tube was evacuated of air, and electrodes were placed at opposite ends.
Final Answer
B and C are the correct options that provide evidence of the electron's negative charge in the cathode ray tube experiment.
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