WAEC Physics 2024 Objective — Question 4
Question 4 of 50 from the West African Examinations Council (WAEC) Physics 2024 Objective paper, with the correct answer and a full explanation.
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4. What are cathode rays? A.
- A. Stream of electronsCorrect
- B. Beam of neutrons
- C. Beam of protons
- D. Stream of alpha particles
Explanation
Cathode rays are streams of electrons. They are produced when an electric current is passed through a gas at low pressure, with a high voltage applied between two electrodes. These rays travel from the negatively charged electrode (cathode) to the positively charged electrode (anode).
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