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P-waves vibrate in which direction relative to the wave's travel?
ACircular path
BVertical only
CIn parallel
DPerpendicular
Answer & Solution
Correct answer: C. In parallel
1. They stretch and squeeze the material.
2. P-waves vibrate parallel to the wave direction.
3. S-waves vibrate perpendicular to it.
_Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 3, Interior of the Earth._
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