Question

A ball falling in a lake of depth 200 m shows a decrease of 0.1% in its volume at the bottom. The bulk modulus of the elasticity of the material of the ball is (take g = 10 ms^(-12))

Answer 1

Answer:

−V

dV

dP

Now, change in pressure, dP=ρgh=1000×10×200=2×10

6

Also, given

V

dV

=−0.001

Thus, B=−

−0.001

2×10

6

=2×10

9