Sound is:A. a wave that propagates in an elastic medium with aspeed that depends on the medium itselfB. an elastic wave that propagates in vacuum at a speed of340 m/ sC. a wave that propagates in an elastic medium at a speedof 300 000 km/ sD. an elastic wave that propagates in vacuum at a speed of300 000 km/ sE. a wave that propagates in vacuum and all material medi-ums at a speed of 340 m/ s
Question
Sound is:A. a wave that propagates in an elastic medium with aspeed that depends on the medium itselfB. an elastic wave that propagates in vacuum at a speed of340 m/ sC. a wave that propagates in an elastic medium at a speedof 300 000 km/ sD. an elastic wave that propagates in vacuum at a speed of300 000 km/ sE. a wave that propagates in vacuum and all material medi-ums at a speed of 340 m/ s
Solution
The correct answer is A. Sound is a wave that propagates in an elastic medium with a speed that depends on the medium itself. Sound cannot travel through a vacuum because it has no medium to travel through. The speed of sound depends on the temperature, humidity and pressure of the medium through which it is traveling.
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