Surface Tension
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PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361194 A drop of some liquid of volume \(0.09\;c{m^3}\) is placed on the surface of a glass slide. Then another glass slide is placed on it in such a way that the liquid forms a thin layer of area \(30\;c{m^2}\) between the surfaces of the two slides. To separate the slides, a force of \(16 \times 10^{5}\) dyne has to be applied normal to the surfaces. The surface tension of the liquid (in \(dyne - c{m^{ - 1}}\)) is

1 60
2 75
3 90
4 80
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361195 Two circular plates of radius \(5\;cm\) each, have a \(0.01\;mm\) thick water film between them. Then what will be the force required to separate these plate (S.T. of water \( = 73\,dyne{\rm{/}}cm\))?

1 \(125\,N\)
2 \(95\,N\)
3 \(115\,N\)
4 \(105\,N\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361196 Two very wide parallel glass plates are held vertically at a small separation \(d\), and dipped in water. Some water climbs up in the gap between the plates. Let \(T\) be the surface tension of water, \(p_{o}=\) atmospheric pressure, \(p=\) pressure of water just below the water surface in the region between the plates. Then predict the correct option
supporting img

1 \(p=p_{o}-\dfrac{2 T}{d}\)
2 \(p=p_{o}+\dfrac{2 T}{d}\)
3 \(p=p_{o}-\dfrac{4 T}{d}\)
4 \(p=p_{o}+\dfrac{4 T}{d}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361197 Assertion :
A large force is required to draw apart normally two glass plates enclosing a thin water film.
Reason :
There is surface tension in above scenario.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361198 Two vertical parallel plates are partially submerged in water. The distance between the plates is \(d\) and their length is \(l\). Assuming that the wetting is complete, find the force of their mutual attraction
supporting img

1 \(\dfrac{T^{2} l}{4 \rho g d^{2}}\)
2 \(\dfrac{T^{2} l^{2}}{\rho g d^{3}}\)
3 \(\dfrac{T^{2} l}{g d^{2}}\)
4 \(\dfrac{2 T^{2} l}{\rho g d^{2}}\)
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PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361194 A drop of some liquid of volume \(0.09\;c{m^3}\) is placed on the surface of a glass slide. Then another glass slide is placed on it in such a way that the liquid forms a thin layer of area \(30\;c{m^2}\) between the surfaces of the two slides. To separate the slides, a force of \(16 \times 10^{5}\) dyne has to be applied normal to the surfaces. The surface tension of the liquid (in \(dyne - c{m^{ - 1}}\)) is

1 60
2 75
3 90
4 80
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361195 Two circular plates of radius \(5\;cm\) each, have a \(0.01\;mm\) thick water film between them. Then what will be the force required to separate these plate (S.T. of water \( = 73\,dyne{\rm{/}}cm\))?

1 \(125\,N\)
2 \(95\,N\)
3 \(115\,N\)
4 \(105\,N\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361196 Two very wide parallel glass plates are held vertically at a small separation \(d\), and dipped in water. Some water climbs up in the gap between the plates. Let \(T\) be the surface tension of water, \(p_{o}=\) atmospheric pressure, \(p=\) pressure of water just below the water surface in the region between the plates. Then predict the correct option
supporting img

1 \(p=p_{o}-\dfrac{2 T}{d}\)
2 \(p=p_{o}+\dfrac{2 T}{d}\)
3 \(p=p_{o}-\dfrac{4 T}{d}\)
4 \(p=p_{o}+\dfrac{4 T}{d}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361197 Assertion :
A large force is required to draw apart normally two glass plates enclosing a thin water film.
Reason :
There is surface tension in above scenario.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361198 Two vertical parallel plates are partially submerged in water. The distance between the plates is \(d\) and their length is \(l\). Assuming that the wetting is complete, find the force of their mutual attraction
supporting img

1 \(\dfrac{T^{2} l}{4 \rho g d^{2}}\)
2 \(\dfrac{T^{2} l^{2}}{\rho g d^{3}}\)
3 \(\dfrac{T^{2} l}{g d^{2}}\)
4 \(\dfrac{2 T^{2} l}{\rho g d^{2}}\)
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PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361194 A drop of some liquid of volume \(0.09\;c{m^3}\) is placed on the surface of a glass slide. Then another glass slide is placed on it in such a way that the liquid forms a thin layer of area \(30\;c{m^2}\) between the surfaces of the two slides. To separate the slides, a force of \(16 \times 10^{5}\) dyne has to be applied normal to the surfaces. The surface tension of the liquid (in \(dyne - c{m^{ - 1}}\)) is

1 60
2 75
3 90
4 80
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361195 Two circular plates of radius \(5\;cm\) each, have a \(0.01\;mm\) thick water film between them. Then what will be the force required to separate these plate (S.T. of water \( = 73\,dyne{\rm{/}}cm\))?

1 \(125\,N\)
2 \(95\,N\)
3 \(115\,N\)
4 \(105\,N\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361196 Two very wide parallel glass plates are held vertically at a small separation \(d\), and dipped in water. Some water climbs up in the gap between the plates. Let \(T\) be the surface tension of water, \(p_{o}=\) atmospheric pressure, \(p=\) pressure of water just below the water surface in the region between the plates. Then predict the correct option
supporting img

1 \(p=p_{o}-\dfrac{2 T}{d}\)
2 \(p=p_{o}+\dfrac{2 T}{d}\)
3 \(p=p_{o}-\dfrac{4 T}{d}\)
4 \(p=p_{o}+\dfrac{4 T}{d}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361197 Assertion :
A large force is required to draw apart normally two glass plates enclosing a thin water film.
Reason :
There is surface tension in above scenario.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361198 Two vertical parallel plates are partially submerged in water. The distance between the plates is \(d\) and their length is \(l\). Assuming that the wetting is complete, find the force of their mutual attraction
supporting img

1 \(\dfrac{T^{2} l}{4 \rho g d^{2}}\)
2 \(\dfrac{T^{2} l^{2}}{\rho g d^{3}}\)
3 \(\dfrac{T^{2} l}{g d^{2}}\)
4 \(\dfrac{2 T^{2} l}{\rho g d^{2}}\)
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PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361194 A drop of some liquid of volume \(0.09\;c{m^3}\) is placed on the surface of a glass slide. Then another glass slide is placed on it in such a way that the liquid forms a thin layer of area \(30\;c{m^2}\) between the surfaces of the two slides. To separate the slides, a force of \(16 \times 10^{5}\) dyne has to be applied normal to the surfaces. The surface tension of the liquid (in \(dyne - c{m^{ - 1}}\)) is

1 60
2 75
3 90
4 80
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361195 Two circular plates of radius \(5\;cm\) each, have a \(0.01\;mm\) thick water film between them. Then what will be the force required to separate these plate (S.T. of water \( = 73\,dyne{\rm{/}}cm\))?

1 \(125\,N\)
2 \(95\,N\)
3 \(115\,N\)
4 \(105\,N\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361196 Two very wide parallel glass plates are held vertically at a small separation \(d\), and dipped in water. Some water climbs up in the gap between the plates. Let \(T\) be the surface tension of water, \(p_{o}=\) atmospheric pressure, \(p=\) pressure of water just below the water surface in the region between the plates. Then predict the correct option
supporting img

1 \(p=p_{o}-\dfrac{2 T}{d}\)
2 \(p=p_{o}+\dfrac{2 T}{d}\)
3 \(p=p_{o}-\dfrac{4 T}{d}\)
4 \(p=p_{o}+\dfrac{4 T}{d}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361197 Assertion :
A large force is required to draw apart normally two glass plates enclosing a thin water film.
Reason :
There is surface tension in above scenario.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361198 Two vertical parallel plates are partially submerged in water. The distance between the plates is \(d\) and their length is \(l\). Assuming that the wetting is complete, find the force of their mutual attraction
supporting img

1 \(\dfrac{T^{2} l}{4 \rho g d^{2}}\)
2 \(\dfrac{T^{2} l^{2}}{\rho g d^{3}}\)
3 \(\dfrac{T^{2} l}{g d^{2}}\)
4 \(\dfrac{2 T^{2} l}{\rho g d^{2}}\)
Join With Us for More Updates
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361194 A drop of some liquid of volume \(0.09\;c{m^3}\) is placed on the surface of a glass slide. Then another glass slide is placed on it in such a way that the liquid forms a thin layer of area \(30\;c{m^2}\) between the surfaces of the two slides. To separate the slides, a force of \(16 \times 10^{5}\) dyne has to be applied normal to the surfaces. The surface tension of the liquid (in \(dyne - c{m^{ - 1}}\)) is

1 60
2 75
3 90
4 80
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361195 Two circular plates of radius \(5\;cm\) each, have a \(0.01\;mm\) thick water film between them. Then what will be the force required to separate these plate (S.T. of water \( = 73\,dyne{\rm{/}}cm\))?

1 \(125\,N\)
2 \(95\,N\)
3 \(115\,N\)
4 \(105\,N\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361196 Two very wide parallel glass plates are held vertically at a small separation \(d\), and dipped in water. Some water climbs up in the gap between the plates. Let \(T\) be the surface tension of water, \(p_{o}=\) atmospheric pressure, \(p=\) pressure of water just below the water surface in the region between the plates. Then predict the correct option
supporting img

1 \(p=p_{o}-\dfrac{2 T}{d}\)
2 \(p=p_{o}+\dfrac{2 T}{d}\)
3 \(p=p_{o}-\dfrac{4 T}{d}\)
4 \(p=p_{o}+\dfrac{4 T}{d}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361197 Assertion :
A large force is required to draw apart normally two glass plates enclosing a thin water film.
Reason :
There is surface tension in above scenario.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361198 Two vertical parallel plates are partially submerged in water. The distance between the plates is \(d\) and their length is \(l\). Assuming that the wetting is complete, find the force of their mutual attraction
supporting img

1 \(\dfrac{T^{2} l}{4 \rho g d^{2}}\)
2 \(\dfrac{T^{2} l^{2}}{\rho g d^{3}}\)
3 \(\dfrac{T^{2} l}{g d^{2}}\)
4 \(\dfrac{2 T^{2} l}{\rho g d^{2}}\)