Answer:
Explanation:P waves are compression waves along the axis of source vibration.
S waves are shear waves perpendicular to axis of compression.
Best way to test the difference between P and S waves is to place ears on your table, knock on opposite surface under table. What you hear or feel is the P wave travelling across the thickness of the table.
Now, knock on the same side of table while placing ears on table. Here, you hear or feel S waves spreading on surface
Usually. P wave is twice as fast as S wave because density is twice in depth than on surface.
