Class 11 Physics31)The density of water at 4°C is
1*103kg/m3
Class 11 Physics32)The ratio of density of a substance to the density of water at 4°C is called as
Relative density
Class 11 Physics33)Relative density is the _______ and positive______ quantity.
Dimensionless, scalar
Class 11 Physics34)A pressure equivalent to 1mm is called ___
A torr
Class 11 Physics35)In meteorology, a common unit used for pressure is
Both a and b
Class 11 Physics36)Which of the following devices are based in the Pascal’s law
Both a and b
Class 11 Physics37)The study of fluid in motion is called as
Fluid dynamics
Class 11 Physics38)If at any point the velocity of each passing fluid particle is constant in time then the flow of fluid is said to be
Both a and b
Class 11 Physics39)The path taken by a fluid particle under a steady flow is a
Streamline
Class 11 Physics40)Steady flow is achieved at
Low speeds