UNIVERSE
PLANETARY INTERIORS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Overall, both P and S waves would INCREASE in speed
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Overall, both P and S waves would DECREASE in speed
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P waves would DECREASE in speed and S waves would disappear
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P waves would INCREASE in speed and S waves would DECREASE in speed
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Detailed explanation-1: -Seismic waves travel more quickly through denser materials and therefore generally travel more quickly with depth. Anomalously hot areas slow down seismic waves. Seismic waves move more slowly through a liquid than a solid.
Detailed explanation-2: -P waves travel fastest and are the first to arrive from the earthquake. In S or shear waves, rock oscillates perpendicular to the direction of wave propagation. In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P wave.
Detailed explanation-3: -Seismic waves travel faster through hard rock than through softer rock and sediments like soil and sand. But as the waves pass from harder to softer rocks, they slow and their strength increases, so shaking is more intense where the ground is softer.
Detailed explanation-4: -P Waves. The first kind of body wave is the P wave or primary wave. It’s the fastest kind of seismic wave, and the first to arrive at a seismic station. P waves can move through solid rock and fluids, like water or the liquid layers of the Earth.