Which one of the following is ESSENTIAL for the propagation of sound from a source to…

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Waves Sound and Physical Optics · Waves Sound and Physical Optics

Problem

Which one of the following is ESSENTIAL for the propagation of sound from a source to a listener? (a) A perfect vacuum (b) An electromagnetic field (c) A material medium (d) A very high temperature

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