An earthquake generates both transverse ( S ) and longitudinal ( P ) sound waves in the earth. The speed of S waves is about 4.5 km/s and that of P waves is about 8.0 km/s. A seismograph records P and

Question

An earthquake generates both transverse ( $S$ ) and longitudinal ( $P$ ) sound waves in the earth. The speed of $S$ waves is about 4.5 km/s and that of $P$ waves is about 8.0 km/s. A seismograph records $P$ and $S$ waves from an earthquake. The first $P$ wave arrives 4.0 min before the first $S$ wave. The epicenter of the earthquake is located at a distance about:

Options:

Answer:

C

Solution:

$d /4.5 - d /8 = 240$ s. $d \times 0.0972 = 240$ gives $d = 2.47 \times 1 0^{3}$ km, about 2500 km.

TestHub · Accepted Answer

d /4.5 − d /8 = 240 s. d × 0.0972 = 240 gives d = 2.47 × 1 0 3 km, about 2500 km.

Physics - Wave on String Question with Solution | TestHub

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