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Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 12 - Fluid Mechanics, Surface Tension and Viscosity > A vessel contains oil (density =0.8gm/cm^3) over mercury (density =13.6g/cm^3). A homogeneous sphere floats with half its volume immersed in mercury and the other half in oil. The density of the material of the sphere in gm/cm^3 is

A vessel contains oil (density =0.8gm/cm^3) over mercury (density =13.6g/cm^3). A homogeneous sphere floats with half its volume immersed in mercury and the other half in oil. The density of the material of the sphere in gm/cm^3 is

A hole is made at the bottom of the tank filled with water (density 1000kg/m^3) If the total pressure at the bottom ofthe tank is 3 atmosphere ( 1 atmosphere = 10^5N/m^2 ) then the velocity of efflux is :