04. Pascal's Law and Pressure Inside the Fluid
Mechanical Properties of Fluids

143149 A vessel, whose bottom has round holes with diameter of $1 \mathrm{~mm}$ is filled with water. Assuming that surface tension acts only at holes, then the maximum height to which the water can be filled in vessel without leakage is

1 $3 \mathrm{~cm}$
2 $0.3 \mathrm{~cm}$
3 $3 \mathrm{~mm}$
4 $3 \mathrm{~m}$
Mechanical Properties of Fluids

143150 Air inside a closed container is saturated with water vapour. The air pressure is $p$ and the saturated vapour pressure of water is $\bar{p}$. If the mixture is compressed to one half of its volume by maintaining temperature constant, the pressure becomes

1 $2(\mathrm{p}+\overline{\mathrm{p}})$
2 $2 p+\bar{p}$
3 $\frac{(\mathrm{p}+\overline{\mathrm{p}})}{2}$
4 $p+2 \bar{p}$
Mechanical Properties of Fluids

143151 A cylinder of height $h$ is filled with water and is kept on a block of height $h / 2$. The level of water in the cylinder is kept constant. Four holes numbered 1, 2, 3 and 4 are at the side of the cylinder and at heights $0, \mathrm{~h} / 4, \mathrm{~h} / 2$ and $3 \mathrm{~h} / 4$, respectively. When all four holes are opened together, the hole from which water will reach farthest distance on the plane $P Q$ is the hole number.

1 1
2 2
3 3
4 4
Mechanical Properties of Fluids

143152 A U-shaped tube is partially filled with an incompressible liquid of density $1.2 \mathrm{~g} / \mathrm{cm}^{3}$. Oil which does not mix with the liquid is next poured into left side of the U-tube until the liquid rises by $15 \mathrm{~cm}$ on the right side of $U$ tube. If the density of the oil is $0.9 \mathrm{~g} / \mathrm{cm}^{3}$, the oil level will stand higher than the liquid level of right side of $U$-tube by

1 $15 \mathrm{~cm}$
2 $10 \mathrm{~cm}$
3 $12 \mathrm{~cm}$
4 $9 \mathrm{~cm}$
Mechanical Properties of Fluids

143149 A vessel, whose bottom has round holes with diameter of $1 \mathrm{~mm}$ is filled with water. Assuming that surface tension acts only at holes, then the maximum height to which the water can be filled in vessel without leakage is

1 $3 \mathrm{~cm}$
2 $0.3 \mathrm{~cm}$
3 $3 \mathrm{~mm}$
4 $3 \mathrm{~m}$
Mechanical Properties of Fluids

143150 Air inside a closed container is saturated with water vapour. The air pressure is $p$ and the saturated vapour pressure of water is $\bar{p}$. If the mixture is compressed to one half of its volume by maintaining temperature constant, the pressure becomes

1 $2(\mathrm{p}+\overline{\mathrm{p}})$
2 $2 p+\bar{p}$
3 $\frac{(\mathrm{p}+\overline{\mathrm{p}})}{2}$
4 $p+2 \bar{p}$
Mechanical Properties of Fluids

143151 A cylinder of height $h$ is filled with water and is kept on a block of height $h / 2$. The level of water in the cylinder is kept constant. Four holes numbered 1, 2, 3 and 4 are at the side of the cylinder and at heights $0, \mathrm{~h} / 4, \mathrm{~h} / 2$ and $3 \mathrm{~h} / 4$, respectively. When all four holes are opened together, the hole from which water will reach farthest distance on the plane $P Q$ is the hole number.

1 1
2 2
3 3
4 4
Mechanical Properties of Fluids

143152 A U-shaped tube is partially filled with an incompressible liquid of density $1.2 \mathrm{~g} / \mathrm{cm}^{3}$. Oil which does not mix with the liquid is next poured into left side of the U-tube until the liquid rises by $15 \mathrm{~cm}$ on the right side of $U$ tube. If the density of the oil is $0.9 \mathrm{~g} / \mathrm{cm}^{3}$, the oil level will stand higher than the liquid level of right side of $U$-tube by

1 $15 \mathrm{~cm}$
2 $10 \mathrm{~cm}$
3 $12 \mathrm{~cm}$
4 $9 \mathrm{~cm}$
Mechanical Properties of Fluids

143149 A vessel, whose bottom has round holes with diameter of $1 \mathrm{~mm}$ is filled with water. Assuming that surface tension acts only at holes, then the maximum height to which the water can be filled in vessel without leakage is

1 $3 \mathrm{~cm}$
2 $0.3 \mathrm{~cm}$
3 $3 \mathrm{~mm}$
4 $3 \mathrm{~m}$
Mechanical Properties of Fluids

143150 Air inside a closed container is saturated with water vapour. The air pressure is $p$ and the saturated vapour pressure of water is $\bar{p}$. If the mixture is compressed to one half of its volume by maintaining temperature constant, the pressure becomes

1 $2(\mathrm{p}+\overline{\mathrm{p}})$
2 $2 p+\bar{p}$
3 $\frac{(\mathrm{p}+\overline{\mathrm{p}})}{2}$
4 $p+2 \bar{p}$
Mechanical Properties of Fluids

143151 A cylinder of height $h$ is filled with water and is kept on a block of height $h / 2$. The level of water in the cylinder is kept constant. Four holes numbered 1, 2, 3 and 4 are at the side of the cylinder and at heights $0, \mathrm{~h} / 4, \mathrm{~h} / 2$ and $3 \mathrm{~h} / 4$, respectively. When all four holes are opened together, the hole from which water will reach farthest distance on the plane $P Q$ is the hole number.

1 1
2 2
3 3
4 4
Mechanical Properties of Fluids

143152 A U-shaped tube is partially filled with an incompressible liquid of density $1.2 \mathrm{~g} / \mathrm{cm}^{3}$. Oil which does not mix with the liquid is next poured into left side of the U-tube until the liquid rises by $15 \mathrm{~cm}$ on the right side of $U$ tube. If the density of the oil is $0.9 \mathrm{~g} / \mathrm{cm}^{3}$, the oil level will stand higher than the liquid level of right side of $U$-tube by

1 $15 \mathrm{~cm}$
2 $10 \mathrm{~cm}$
3 $12 \mathrm{~cm}$
4 $9 \mathrm{~cm}$
Mechanical Properties of Fluids

143149 A vessel, whose bottom has round holes with diameter of $1 \mathrm{~mm}$ is filled with water. Assuming that surface tension acts only at holes, then the maximum height to which the water can be filled in vessel without leakage is

1 $3 \mathrm{~cm}$
2 $0.3 \mathrm{~cm}$
3 $3 \mathrm{~mm}$
4 $3 \mathrm{~m}$
Mechanical Properties of Fluids

143150 Air inside a closed container is saturated with water vapour. The air pressure is $p$ and the saturated vapour pressure of water is $\bar{p}$. If the mixture is compressed to one half of its volume by maintaining temperature constant, the pressure becomes

1 $2(\mathrm{p}+\overline{\mathrm{p}})$
2 $2 p+\bar{p}$
3 $\frac{(\mathrm{p}+\overline{\mathrm{p}})}{2}$
4 $p+2 \bar{p}$
Mechanical Properties of Fluids

143151 A cylinder of height $h$ is filled with water and is kept on a block of height $h / 2$. The level of water in the cylinder is kept constant. Four holes numbered 1, 2, 3 and 4 are at the side of the cylinder and at heights $0, \mathrm{~h} / 4, \mathrm{~h} / 2$ and $3 \mathrm{~h} / 4$, respectively. When all four holes are opened together, the hole from which water will reach farthest distance on the plane $P Q$ is the hole number.

1 1
2 2
3 3
4 4
Mechanical Properties of Fluids

143152 A U-shaped tube is partially filled with an incompressible liquid of density $1.2 \mathrm{~g} / \mathrm{cm}^{3}$. Oil which does not mix with the liquid is next poured into left side of the U-tube until the liquid rises by $15 \mathrm{~cm}$ on the right side of $U$ tube. If the density of the oil is $0.9 \mathrm{~g} / \mathrm{cm}^{3}$, the oil level will stand higher than the liquid level of right side of $U$-tube by

1 $15 \mathrm{~cm}$
2 $10 \mathrm{~cm}$
3 $12 \mathrm{~cm}$
4 $9 \mathrm{~cm}$