WAEC Physics 2015 Objective — Question 21
Question 21 of 50 from the West African Examinations Council (WAEC) Physics 2015 Objective paper, with the correct answer and a full explanation.
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Which of the following concepts is a method of heat transfer that does not require a material medium?
- A. Conduction
- B. RadiationCorrect
- C. Diffusion
- D. Convention
Explanation
Radiation is the transfer of heat via electromagnetic waves and does not require a material medium, unlike conduction and convection.
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