Viscocity
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361330 A thin plate of area \(2\;\,{m^2}\) is moving between two fixed parallel surfaces as shown in the figure. The liquid present on both sides of the plate is same and has coefficient of viscosity \(\eta=0.01\) poise. Find the external force require to make the plate to move with constant velocity \(2\;m/s\).
supporting img

1 \(12 \times {10^{ - 3}}\;\,N\)
2 \(8 \times {10^{ - 3}}\,\;N\)
3 \(4 \times {10^{ - 3}}\,\;N\)
4 \(12 \times {10^{ - 2}}\;\,N\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361331 The dimensions of coefficient of viscosity is

1 \(M L^{-1} T^{-1}\)
2 \(M L T^{-1}\)
3 \(M L^{-1} T\)
4 \(M L^{-2} T^{-1}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361332 A metal plate of area \(0.2\;{m^2}\) is connected to a \(0.01\;kg\) of mass via a string that passes over an ideal pulley.
supporting img
A liquid with a film thickness of \(0.4\,\,mm\) is placed between the plate and the table as shown in figure above. When released, the plate moves to the right with a constant speed of \(0.08\,\,m{s^{ - 1}}.\) The coefficient of viscosity of the liquid is \(n \times {10^{ - 3}}Pa - s.\) Find \(n\).
(Take \(g = 10\;m{\rm{/}}{s^2}\))

1 \(4.5 \times {10^{ - 3}}\,Pa - s\)
2 \(6.5 \times {10^{ - 3}}\,Pa - s\)
3 \(8.5 \times {10^{ - 3}}\,Pa - s\)
4 \(2.5 \times {10^{ - 3}}\,Pa - s\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361333 The velocity of the surface layer of water in a river of depth \(10\;m\) is \(5\;m{s^{ - 1}}\). The shearing stress between the surface layer and the bottom layer is (Coefficient of viscosity of water, \(\eta = {10^{ - 3}}SI\) units)

1 \(0.6 \times {10^{ - 3}}\,N{m^{ - 2}}\)
2 \(0.5 \times {10^{ - 3}}\,N{m^{ - 2}}\)
3 \({10^{ - 3}}\,N{m^{ - 2}}\)
4 \(0.8 \times {10^{ - 3}}\,N{m^{ - 2}}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361330 A thin plate of area \(2\;\,{m^2}\) is moving between two fixed parallel surfaces as shown in the figure. The liquid present on both sides of the plate is same and has coefficient of viscosity \(\eta=0.01\) poise. Find the external force require to make the plate to move with constant velocity \(2\;m/s\).
supporting img

1 \(12 \times {10^{ - 3}}\;\,N\)
2 \(8 \times {10^{ - 3}}\,\;N\)
3 \(4 \times {10^{ - 3}}\,\;N\)
4 \(12 \times {10^{ - 2}}\;\,N\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361331 The dimensions of coefficient of viscosity is

1 \(M L^{-1} T^{-1}\)
2 \(M L T^{-1}\)
3 \(M L^{-1} T\)
4 \(M L^{-2} T^{-1}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361332 A metal plate of area \(0.2\;{m^2}\) is connected to a \(0.01\;kg\) of mass via a string that passes over an ideal pulley.
supporting img
A liquid with a film thickness of \(0.4\,\,mm\) is placed between the plate and the table as shown in figure above. When released, the plate moves to the right with a constant speed of \(0.08\,\,m{s^{ - 1}}.\) The coefficient of viscosity of the liquid is \(n \times {10^{ - 3}}Pa - s.\) Find \(n\).
(Take \(g = 10\;m{\rm{/}}{s^2}\))

1 \(4.5 \times {10^{ - 3}}\,Pa - s\)
2 \(6.5 \times {10^{ - 3}}\,Pa - s\)
3 \(8.5 \times {10^{ - 3}}\,Pa - s\)
4 \(2.5 \times {10^{ - 3}}\,Pa - s\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361333 The velocity of the surface layer of water in a river of depth \(10\;m\) is \(5\;m{s^{ - 1}}\). The shearing stress between the surface layer and the bottom layer is (Coefficient of viscosity of water, \(\eta = {10^{ - 3}}SI\) units)

1 \(0.6 \times {10^{ - 3}}\,N{m^{ - 2}}\)
2 \(0.5 \times {10^{ - 3}}\,N{m^{ - 2}}\)
3 \({10^{ - 3}}\,N{m^{ - 2}}\)
4 \(0.8 \times {10^{ - 3}}\,N{m^{ - 2}}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361330 A thin plate of area \(2\;\,{m^2}\) is moving between two fixed parallel surfaces as shown in the figure. The liquid present on both sides of the plate is same and has coefficient of viscosity \(\eta=0.01\) poise. Find the external force require to make the plate to move with constant velocity \(2\;m/s\).
supporting img

1 \(12 \times {10^{ - 3}}\;\,N\)
2 \(8 \times {10^{ - 3}}\,\;N\)
3 \(4 \times {10^{ - 3}}\,\;N\)
4 \(12 \times {10^{ - 2}}\;\,N\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361331 The dimensions of coefficient of viscosity is

1 \(M L^{-1} T^{-1}\)
2 \(M L T^{-1}\)
3 \(M L^{-1} T\)
4 \(M L^{-2} T^{-1}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361332 A metal plate of area \(0.2\;{m^2}\) is connected to a \(0.01\;kg\) of mass via a string that passes over an ideal pulley.
supporting img
A liquid with a film thickness of \(0.4\,\,mm\) is placed between the plate and the table as shown in figure above. When released, the plate moves to the right with a constant speed of \(0.08\,\,m{s^{ - 1}}.\) The coefficient of viscosity of the liquid is \(n \times {10^{ - 3}}Pa - s.\) Find \(n\).
(Take \(g = 10\;m{\rm{/}}{s^2}\))

1 \(4.5 \times {10^{ - 3}}\,Pa - s\)
2 \(6.5 \times {10^{ - 3}}\,Pa - s\)
3 \(8.5 \times {10^{ - 3}}\,Pa - s\)
4 \(2.5 \times {10^{ - 3}}\,Pa - s\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361333 The velocity of the surface layer of water in a river of depth \(10\;m\) is \(5\;m{s^{ - 1}}\). The shearing stress between the surface layer and the bottom layer is (Coefficient of viscosity of water, \(\eta = {10^{ - 3}}SI\) units)

1 \(0.6 \times {10^{ - 3}}\,N{m^{ - 2}}\)
2 \(0.5 \times {10^{ - 3}}\,N{m^{ - 2}}\)
3 \({10^{ - 3}}\,N{m^{ - 2}}\)
4 \(0.8 \times {10^{ - 3}}\,N{m^{ - 2}}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361330 A thin plate of area \(2\;\,{m^2}\) is moving between two fixed parallel surfaces as shown in the figure. The liquid present on both sides of the plate is same and has coefficient of viscosity \(\eta=0.01\) poise. Find the external force require to make the plate to move with constant velocity \(2\;m/s\).
supporting img

1 \(12 \times {10^{ - 3}}\;\,N\)
2 \(8 \times {10^{ - 3}}\,\;N\)
3 \(4 \times {10^{ - 3}}\,\;N\)
4 \(12 \times {10^{ - 2}}\;\,N\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361331 The dimensions of coefficient of viscosity is

1 \(M L^{-1} T^{-1}\)
2 \(M L T^{-1}\)
3 \(M L^{-1} T\)
4 \(M L^{-2} T^{-1}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361332 A metal plate of area \(0.2\;{m^2}\) is connected to a \(0.01\;kg\) of mass via a string that passes over an ideal pulley.
supporting img
A liquid with a film thickness of \(0.4\,\,mm\) is placed between the plate and the table as shown in figure above. When released, the plate moves to the right with a constant speed of \(0.08\,\,m{s^{ - 1}}.\) The coefficient of viscosity of the liquid is \(n \times {10^{ - 3}}Pa - s.\) Find \(n\).
(Take \(g = 10\;m{\rm{/}}{s^2}\))

1 \(4.5 \times {10^{ - 3}}\,Pa - s\)
2 \(6.5 \times {10^{ - 3}}\,Pa - s\)
3 \(8.5 \times {10^{ - 3}}\,Pa - s\)
4 \(2.5 \times {10^{ - 3}}\,Pa - s\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361333 The velocity of the surface layer of water in a river of depth \(10\;m\) is \(5\;m{s^{ - 1}}\). The shearing stress between the surface layer and the bottom layer is (Coefficient of viscosity of water, \(\eta = {10^{ - 3}}SI\) units)

1 \(0.6 \times {10^{ - 3}}\,N{m^{ - 2}}\)
2 \(0.5 \times {10^{ - 3}}\,N{m^{ - 2}}\)
3 \({10^{ - 3}}\,N{m^{ - 2}}\)
4 \(0.8 \times {10^{ - 3}}\,N{m^{ - 2}}\)