Which property in a medium changes, when a longitudinal wave passes through it
A
Pressure
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B
Mass
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C
Velocity
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D
Acceleration
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Solution
The correct option is A Pressure
The longitudinal waves are called pressure waves because propagation of longitudinal waves through a medium involves changes in pressure and volume of air, when compression and rarefaction are formed.
The pressure in a medium varies as a longitduinal wave passes through the medium. The correct answer is (a)