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Q: Which of the following statements regarding sound waves is not correct?
  • A. It travels at a speed of 330–350 m / s.
  • B. These are mechanical waves.
  • C. They do not require any type of medium to travel.
  • D. It cannot travel long distances.
Correct Answer: Option C - Sound wave – • It travels in the form of longitudinal waves. • It requires a medium (solid, liquid and gas) for propagation. • It travels through air with a speed of 332 m/s at 0⁰C.
C. Sound wave – • It travels in the form of longitudinal waves. • It requires a medium (solid, liquid and gas) for propagation. • It travels through air with a speed of 332 m/s at 0⁰C.

Explanations:

Sound wave – • It travels in the form of longitudinal waves. • It requires a medium (solid, liquid and gas) for propagation. • It travels through air with a speed of 332 m/s at 0⁰C.