Question
Find the increase in pressure required to decrease the volume of water sample by 0.01%. Bulk modulus of water = 2.1 × 109 Nm-2 .
4.3x 104 N/m2
1.8 × 107 N/m2
2.1 × 105 N/m2
3.7 × 104 N/m2
Solution
C.
2.1 × 105 N/m2
Given:- Bulk modulus of water B = 2.1 × 109 N/m2
Also given that
= 0.01 %
=
= 10-4
We know that,
The ratio of change in pressure to the fractional volume compression is called the bulk modulus of the material.
B =
p =
= 2.1 × 109 × 10-4
p = 2.1 × 105 N/m2
