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The shadow zone where neither P nor S-waves are recorded lies between which angles from the epicentre?
A105 and 145 degrees
B0 and 105 degrees
C145 and 180 degrees
D45 and 90 degrees
Answer & Solution
Correct answer: A. 105 and 145 degrees
1. Within 105 degrees both waves arrive.
2. Between 105 and 145 degrees neither arrives.
3. Beyond 145 degrees only P-waves arrive.
_Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 3, Interior of the Earth._
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