The bulk modulus of water is 3×10^9 N/m^2. The extra pressure required to inrease the density of water by 0.2 % is (1) 1.5×10^6 N/m^2 (2) 3×10^{6 }N/m^2 (3) 2/3 × 10^6 N/m^2 (4) 6×10^6 N/m^2

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Find the decrease in the volume of a sample of water from the following data. Initial volume = 1000 cm³, initial pressure = 10⁵ N m^-2, final pressure = 10⁶ N m^-2, compressibility of water = 50 x 10^-11 m² N^-1.

Q. The bulk modulus of water is

2.0 \times 10^{9} N / m^{2}

The pressure required to increase the density of water by

0.1 %

is :

Q. The bulk modulus of water is

2.1 \times 10^{9} N / m^{2}

. The pressure required to increase the density of water by 0.1 % is

Q. The initial volume of water is

2000 {cm}^{3}

. Determine the change in volume of the water when external pressure is changed from

10^{5} {Nm}^{- 2}

10^{6} {Nm}^{- 2}

.
[Take compressibility of water as

60 \times 10^{- 11} m^{2} / N

]

Q. The pressure amplitude in a medium through which sound is travelling is

1.5 \times 10^{- 3} {N/m}^{2}

and intensity is

10^{- 6} {W/m}^{2}

. If the pressure amplitude is increased to

4.5 \times 10^{- 3} {N/m}^{2}

by increasing the volume of sound then the intensity will be

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