Q1 . Sketch all reflected and transmitted seismic rays (on the two sides only of the specified boundary ). showing correct angular relationships for: upgoing S wave incident at the base of the crust....

Q1
. Sketch all reflected and transmitted seismic rays (on the two sides only of the specified boundary ). showing correct angular relationships for: upgoing S wave incident at the base of the crust. at 15° to the normal downgoing P wave incident from the mantle at the outer boundary of the core. at 30° to the normal
Assume Poisson's ratio of 0.25
Q2
Compute the deepest point reached in the Earth by a P wave which enters the top of the mantle at an angle of 60° from the normal. Tables of P-wave velocity may be found in Richter. Appendix. or in Bull. Seis. Soc. Amer.. 1968. p. 1223
Q3
Assume constant velocity for P in the mantle and core of 13.6 and 8.1 km/sec. Construct a cross section to scale through the Earth showing the core boundary. Draw ravpaths from the surface through the core and back to




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