Post-UTME Physics 2016 Objective — Question 16
Question 16 of 20 from the Post-UTME Screening (Post-UTME) Physics 2016 Objective paper, with the correct answer and a full explanation.
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I. Travel in straight lines II. Have kinetic energy III. produce heat on collision with metals IV. Can be deflected by a magnetic field. From the above, which of the combinations is a characteristic of cathode rays?
- A. I, II and IV only
- B. I, II, III and IVCorrect
- C. II and IV only
- D. I and II only
Explanation
Cathode rays travel in straight lines, possess kinetic energy, produce heat on collision, and can be deflected by magnetic fields - all four properties apply.
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