Question

explain secondary wave​

Answer 1

Secondary waves (S-waves) are shear waves that are transverse in nature. Following an earthquake event, S-waves arrive at seismograph stations after the faster-moving P-waves and displace the ground perpendicular to the direction of propagation.

Answer 2

Answer:

Secondary waves

Secondary waves or S waves,, are the second waves to arrive during an earthquake. They are much slower than primary waves or P waves and can travel only through solids. It is after studying the trajectory of S waves through the layers of earth, scientists were able to conclude that the earth’s outer core is liquid.

Characteristics of S waves :

• Second waves to hit seismographs.

• They are shear waves.

• Can only move through solids.

• Shake the medium in the direction perpendicular to which they are moving.

S wave formula

β² = μ / ρ

where,

• ⍴ is the density through which the wave propagates