Why do earthquake wave develop shadow …
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Meghna Thapar 5 years, 1 month ago
The shadow zone is the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves. The shadow zone results from S waves being stopped entirely by the liquid core and P waves being bent (refracted) by the liquid core. The earthquake waves develop shadow zones because: (i)The P and S waves follow a curved path in the interior of the earth which proves that the density increases inside the earth. (iii)On reaching the core 'S' waves disappear and P waves are refracted as a result there is no wave for a distance.
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