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Q: The area of high density of particles in the medium at the time of sound transmission is called:
  • A. refraction
  • B. resonance
  • C. vibration
  • D. compression
Correct Answer: Option D - The area of high density of particles in the medium at the time of sound transmission is called compression and the area of low density is called rarefaction.
D. The area of high density of particles in the medium at the time of sound transmission is called compression and the area of low density is called rarefaction.

Explanations:

The area of high density of particles in the medium at the time of sound transmission is called compression and the area of low density is called rarefaction.