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Which of the following types of waves needs a medium for propagation?

Physics
JAMB 2011
Which of the following types of waves needs a medium for propagation?
  • A. sound waves
  • B. light waves
  • C. radio waves
  • D. x - rays
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Correct Answer: Option A
Explanation
Sound is the only mechanical wave among the rest which are electromagnetic waves.

There is an explanation video available below.

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Explanation Video

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