Why is s wave shadow zone larger than the p wave shadow zone?
In simple terms the shadow zone of the S-wave is larger because of the Earth's liquid outer core. The S-wave cannot travel through the liquid outer core but the P-waves get refracted at the boundary between the mantle and the outer core. This is why the S-wave shadow zone is larger than the P wave shadow zone.
P waves are refracted at the liquid outer core of the Earth, while S waves are attenuated or stopped entirely. This allows P waves to go "around" the core and reach locations on the far side of the Earth that are within the shadow of the S waves.
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A P-wave is a longitudinal wave with an alternating stretching and compressing motion in the direction of propagation. An S wave is a transverse wave with a vertical motion perpendicular to the direction of propagation.
The shadow zone of a P-wave exists from 105 to 143 degrees (epicentral distance). This is caused by P waves meeting the liquid outer core and being refracted. Part of the P wave is also reflected by the outer core and as a result of the two, a shadow zone exists.
The shadow zone of an S-wave exists from 105 to 180 degrees (epicentral distance). S-waves cannot travel through liquids at all so rather than being refracted by the liquid outer core and traveling through it, they are totally reflected, resulting in a shadow zone from 105 to 180 degrees.
Is Primary wave the fastest wave?
i think so.. :/
Travel fastest through rock material causing rock particles in the rock to move back or forth
Seismic waves, specifically surface waves, can affect the surface of the land by causing it to rise and fall like waves on an ocean. These waves are typically generated during an earthquake and can produce the most visible effects on the Earth's surface.
What earth event creates seismic waves?
Earthquakes are the most common earth event that creates seismic waves. When rocks break and move along a fault line, energy is released in the form of seismic waves that travel through the Earth's crust, leading to earthquakes.
Which are faster s waves and p waves or surface waves?
The fast is primary wave which travels through liguid, solid and gas. This how Geologist know the outer core is liquid. Secondary waves travel through only solid. The primary wave are the first to reach the seismograph.
How can seismic wave be used to infer the presence of the Mohorovicic Discontinuity?
Seismic waves change speed and direction when they encounter changes in the density and composition of rocks. The Mohorovicic Discontinuity marks the boundary between the Earth's crust and mantle, causing seismic waves to abruptly change behavior when passing through it. By analyzing the way seismic waves interact with this boundary, scientists can infer the presence and properties of the Mohorovicic Discontinuity.
What happens to the speed of electromagnetic waves when they go from air to water?
The speed of electromagnetic waves decreases when they transition from air to water because water has a higher refractive index than air. This causes the waves to bend or refract as they enter the water.
Seismic uplift is the vertical movement of the Earth's surface caused by the upward displacement of subsurface rocks in response to tectonic forces or the release of stress along a fault. It can lead to the formation of fault scarps, ridges, or other landforms and can also contribute to the development of earthquakes in certain areas.
What area do seismic wave change dramatically?
Seismic waves can dramatically change in velocity and direction when they encounter boundaries between different types of rock or geological formations. These changes, known as refraction and reflection, occur at interfaces with contrasting physical properties, leading to the bending or bouncing of seismic waves. The behavior of seismic waves at these boundaries provides valuable information about the Earth's interior structure.
Which seismic waves are the most destructive overall?
The Surface waves (of which there are two - the Love and Rayleigh waves) are the most destructive seismic waves as they have the largest amplitude.
Surface waves cause the most damage as they have the largest amplitude of all the seismic waves.
S Wave.
yhuk
How do the waves of the electromagnetic spectrum differ?
In the spectrum of electromagnetic radiation the wave property that changes is the frequency. So for example xrays have higher frequency then blue light which has higher frequency then red light which has higher frequency then radio waves etc.
Earthquake produce which kind of sound before main shock wave?
Earthquakes can produce a variety of sounds before the main shock wave, such as rumbling, cracking, or grinding noises. These sounds can be caused by the movement of rocks along fault lines underground or the shifting of the earth's crust. It's important to note that not all earthquakes produce audible sounds before the main shock wave.
What sound wave is the pitch related to?
In a way, yes, as the pitch of a sound wave is determined by it's frequency f, and a waves period T is the reciprocal of f. i.e. T=1/f
How are seismic waves and sound waves similar?
water waves are the movement of water bodies in respond to disturbances which may include a moving boat, a fallen pebble, or movement in the direction of the wind. while seismic waves are vibration generated by earthquake explosion or similar energetic source and propagated within the earth interior or along its surface.
How do surface waves differ form body waves?
Body waves: seismic waves that travel through the body of a medium Surface waves: seismic waves that travel along the surface of a medium and have a strong effect near the surface of the medium than it has in the interior
Which seismic waves cause the least damage?
Surface waves generally cause the most damage during an earthquake as they travel along the Earth's surface and can produce strong shaking. In contrast, P-waves (primary waves) cause the least damage as they are the fastest seismic waves and are typically not as destructive as the slower-moving surface waves.
Why is light considered as electromagnetic wave?
James Maxwell was able to show that a vibrating charge would result in the propagation of an electromagnetic wave that would travel with velocity that "just happened" to be the speed of light. Since that time, repeated tests have shown that every prediction resulting from the idea that radio waves, light waves, and x-rays (amongst others) are examples of this EM wave have turned out to be correct.
Light is considered to be an EM wave because every test of that statement has given a positive answer.
That is, until, quantum theorists were able to show that light travels in discrete chunks of energy now called "photons."
Which wavelength has the lowest frequency?
The longest one does.
If you're talking about visible light, then it's the last color you can see
on the red end.
If you're talking about the electromagnetic spectrum in general, then
there's no such thing as the "lowest" frequency.
What kind of waves are used in magnetic resonance imaging to map body tissues?
To map body tissues, MRI (Magnetic Resonance Imaging) uses a combination of techniques: a powerful magnetic field, and radio waves. Radio waves are utilized for mapping because they will not damage the body tissue.
What is the difference between electromagnetic waves and radiation?
No difference at all. Radio waves are one of many types of electromagnetic waves.
What can occur on a steep slope during an earthquake?
That is a great question! Something that can occur on a steep slop during an earthquake is that it can trigger massive land slides, which is pretty much just moving land, a land slide is pretty much like a mud slide!
What waves don't need matter to travel through?
Electromagnetic Waves do not require a medium, or matter to move through, to transfer waves. This includes radiowaves, microwaves, infared waves, visible light waves, Ultraviolet waves, X-rays, and gamma rays.
How does a charge q oscillates at certain frequency producing electromagnetic waves?
Any charged particle has an electric field surrounding it. If it oscillates, the electric field will continuously change, resulting in the production of a magnetic field, which is in phase with the electric field. But these two fields are perpendicular to each other. These two "oscillating fields" come together to form electromagnetic waves.