Which is the correct relationship for the relative velocities of the different types of seismic waves?

Question

Quizplus · Accepted Answer

P-waves (Primary waves) are the fastest seismic waves, followed by S-waves (Secondary waves), and then L-waves (surface waves). The relationship P = 1.7 X S indicates that P-waves travel approximately 1.7 times faster than S-waves. The relationship L = 0.9 X S indicates that L-waves travel slower than S-waves, at approximately 90% of the speed of S-waves.

Which Is the Correct Relationship for the Relative Velocities of the Different