Compressibility
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Q.
A solid sphere of radius R and made of a material of bulk modulus K is completely immersed in a liquid in a cylindrical container. A massless piston of area A floats on the surface of the liquid. When a mass M is placed on the piston to compress the liquid, the fractional change in the radius of the sphere, δRR is given by
MgKA
Mg2KA
Mg3KA
Mg4KA
Q.
The density of water at the surface of the ocean is ρ. If the bulk modulus of water is B, what is the density of ocean water at a depth where the pressure is nP0, where P0 is the atmospheric pressure?
ρBB−(n−1)P0
ρBB−nP0
ρBB+nP0
ρBB+(n−1)P0
Q. The compressibility of water is 4×10−5 per unit atmospheric pressure. The decrease in volume of 100 cubic centimeter of water under a pressure of 100 atmosphere will be
0.025 cc
0.004 cc
0.4 cc