4 answers
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P-wave
Sra
a. P-wave
b. S-wave
c. tension wave
d. shear wave
Sra
a. P-wave: P-waves, also known as Primary waves or Pressure waves, are the fastest seismic waves. They cause particles to move back and forth in the same direction as the wave is traveling.
b. S-wave: S-waves, also known as Secondary waves or Shear waves, move slower than P-waves and cause particles to vibrate perpendicular to the direction of wave propagation.
c. Tension wave: Tension waves are not a recognized type of seismic wave. Therefore, we can eliminate this as an option.
d. Shear wave: As mentioned earlier, shear waves cause rock particles to move in the same direction as the wave movement. This is the correct answer.
So, the correct option is d. shear wave.