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JAMB Physics 2023 Objective — Question 21

Question 21 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2023 Objective paper, with the correct answer and a full explanation.

Which waves do NOT need a material medium for propagation except:

A. X-rays
B. Radio waves
C. light waves
D. sound wavesCorrect

Explanation

Sound is mechanical and needs a medium; the others do not.

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