An earthquake generates both transverse (S) and longitudinal (P) sound waves in the earth. The speed of S Wave is about and that of P waves is about
. A seismograph records P and s waves from an earthquake. The first P wave arrives
before the first S wave. The epicentre of the earthquake is located at a distance (in
) of about
12340 Km
13340 Km
14340 Km
15340 Km
Here and
-------------(1)
and
--------------(2)
[using (1)]
Put in eq (1) we get
d =13340 Km
Study 40% syllabus and score up to 100% marks in JEE