Q.

The fractional compression (△VV) of water at the depth of 2.5 km below the sea level is _____%. Given, the Bulk modulus of water = 2×109 Nm–2, density of water =103 kg m–3, acceleration due to gravity g = 10 ms–2.          [2025]

1 1.75  
2 1.0  
3 1.5  
4 1.25  

Ans.

(4)

B=△P–(△VV)

⇒ –(△VV)=△PB=ρghB

                               =103×10×2.5×1032×109=1.25%