Questions
The average density of Earth's crust 10 km beneath the surface is 2.7 gm/cm3. The speed of longitudinal seismic waves at that depth is 5.4 km/s. The bulk modulus of Earth's crust considering its behaviour as fluid at that depth, is
detailed solution
Correct option is A
v=Bρ⇒B=v2ρ=5.40×103m/s22.7×103=7.9×1010PaTalk to our academic expert!
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A steel rod 100 cm long is clamped at its mid-point. The funda-mental frequency of longitudinal vibrations of the rod is given to be 2.53 kHz. What is the speed of sound in steel
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