Question

The Seismic Wave which does not pass through liquids:

• A. P-waves
• B. L-waves
• C. S-waves
• D. R-waves

Answer 1

Answer:

C. S-waves

The S-waves (Secondary waves or Shear waves) are the seismic waves that do not pass through liquids.

S-waves are a type of seismic wave that move through the Earth during an earthquake. They are slower than P-waves (Primary waves) and travel in a side-to-side motion. Importantly, S-waves cannot travel through liquids or gases, which is why they do not pass through the Earth's outer core, which is liquid. This characteristic helped scientists understand that the outer core of the Earth is indeed liquid.

In contrast, P-waves, which are faster and travel in a compressional motion, can pass through both solids and liquids, and they are the first to be detected by seismographs during an earthquake.