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Question
Particles in a longitudinal wave vibrate perpendicular to the direction of the wave propagation.
Options:
A .  True
B .  False
C .  Shrillness of sound gets reduced in outer space.
D .  Sound cannot propagate in outer space.
Answer: Option B
:
B
Particles in a longitudinal waveoscillate along the directionof the wave propagation. Sound wave is an exampleof thelongitudinal wave.
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