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How are seismic waves refracted and reflected?

seo-qna
Last updated date: 22nd Jun 2024
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Answer
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Hint: Seismology is the study of seismic waves and earthquakes flowing through and across the earth. A scientist who researches earthquakes and seismic waves is a seismologist. Mechanical properties of the rocks, such as incompressibility, rigidity, and density, play a role in the speed at which the waves move, as well as the shape and duration of the wave trains, at all distances from the focus.

Complete answer:
1.When a wave encounters a change in material properties, its energy is split into reflected and refracted waves (seismic velocities and or density).
2. The amplitude of the reflection depends heavily on the angle that the incidence wave creates across the boundary with the boundary and the contrast in material properties.
3.Sending elastic waves (using an energy source such as a dynamite explosion or Vibrioses) into the Earth is the general principle of seismic reflection, where each layer within the Earth reflects a portion of the energy of the wave back and allows the rest to refract through.
4.A geophysical principle governed by Snell's Law of refraction is seismic refraction. The methods depend on the fact that in different types of soil or rock, seismic waves have different velocities.
5.When they cross the boundary between different soil or rock types (or conditions), the waves are refracted.

Note:
Seismic waves journey through the Earth and comply with the same legal refraction and mirrored image guidelines as some other interface waves. The waves respond in accordance with Snell's law when they encounter barriers among exceptional media, and the perspective of refraction across the boundary will depend on the speed of the second media relative to the first.