Chapter 14 – Waves
Two narrow bores of diameters 3.0mm and 6.0 mm are joined together to form a U-shaped tube open at both ends. If the U-tube contains water, what is the difference in its levels in the two limbs of the tube? Surface tension of water at the temperature of the experiment is 7.3×10^−2Nm^−1. Take the angle of contact to be zero. and density of water to be 1.0×10^3kg/m^3. (g=9.8ms^−2)
13
Nov
Two narrow bores of diameters 3.0mm and 6.0 mm are joined together to form a U-shaped tube open at both ends. If the U-tube contains water, what is the difference in its levels in the two limbs of the tube? Surface tension of water at the temperature of the experiment is 7.3×10^−2Nm^−1. Take the angle [...]
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In Millikan's oil drop experiment ,
The cylindrical tube of a spray pump has a cross-section of 8.0 cm^2 one end of which has 40 fine holes each of diameter 1.0 mm. If the liquid flow inside the tube is 1.5 m min^−1 ,
Two narrow bores of diameters 3.0mm and 6.0 mm are joined together to form a U-shaped tube open at both ends. If the U-tube contains water ,
what is the speed of ejection of the liquid through the holes ? ,
Mercury has an angle of contact equal to 140^∘ with soda lime glass. A narrow tube of radius 1.00mm made of this glass is dipped in a through containing mercury. By what amount does the mercury dip down in the tube relative to the mercury surface outside? Surface tension of mercury at the temperature of the experiment is 0.465 Nm^−1. Density of mercury = 13.6 × 10^3 kgm^−3.
13
Nov
Mercury has an angle of contact equal to 140^∘ with soda lime glass. A narrow tube of radius 1.00mm made of this glass is dipped in a through containing mercury. By what amount does the mercury dip down in the tube relative to the mercury surface outside? Surface tension of mercury at the temperature of [...]
In Millikan’s oil drop experiment, what is the terminal speed of an uncharged drop of radius 2.0×10^−5 m and density 1.2×10^23 kgm^−3 . Take the viscosity of air at the temperature of the experiment to be 1.8×10^−5 Pas. How much is the viscous force on the drop at that speed ? Neglect buoyancy of the drop due to air.
13
Nov
In Millikan’s oil drop experiment, what is the terminal speed of an uncharged drop of radius 2.0×10^−5 m and density 1.2×10^23 kgm^−3 . Take the viscosity of air at the temperature of the experiment to be 1.8×10^−5 Pas. How much is the viscous force on the drop at that speed ? Neglect buoyancy of the [...]
A plane is in level flight at constant speed and each of its two wings has an area of 25 m^2. If the speed of the air is 180 km/h over the lower wing and 234 km/h over the upper wing surface, determine the mass of plane’s. (Take air density to be 1 km m^−3 ).
13
Nov
A plane is in level flight at constant speed and each of its two wings has an area of 25 m^2. If the speed of the air is 180 km/h over the lower wing and 234 km/h over the upper wing surface, determine the mass of plane’s. (Take air density to be 1 km m^−3 [...]
A tank with a square base of area 1.0 m^2 is divided by a vertical partition in the middle. The bottom of the partition has a small-hinged door of area 20 cm^2 . The tank is filled with water in one compartment, and an acid (of relative density 1.7) in the other, both to a height of 4.0 m. compute the force necessary to keep the door close.
13
Nov
A tank with a square base of area 1.0 m^2 is divided by a vertical partition in the middle. The bottom of the partition has a small-hinged door of area 20 cm^2 . The tank is filled with water in one compartment, and an acid (of relative density 1.7) in the other, both to a [...]
What is the excess pressure inside a bubble of soap solution of radius 5.00 mm, given that the surface tension of soap solution at the temperature (20^o C) is 2.50×10^−2 N/m ? If an air bubble of the same dimension were formed at depth of 40.0 cm inside a container containing the soap solution (of relative density 1.20), what would be the pressure inside the bubble ? (1 atmospheric pressure is 1.01×10^5 Pa)
13
Nov
What is the excess pressure inside a bubble of soap solution of radius 5.00 mm, given that the surface tension of soap solution at the temperature (20^o C) is 2.50×10^−2 N/m ? If an air bubble of the same dimension were formed at depth of 40.0 cm inside a container containing the soap solution (of [...]
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The cylindrical tube of a spray pump has a cross-section of 8.0 cm^2 one end of which has 40 fine holes each of diameter 1.0 mm. If the liquid flow inside the tube is 1.5 m min^−1 ,
What is the excess pressure inside a bubble of soap solution of radius 5.00 mm ,
what is the speed of ejection of the liquid through the holes ? ,
What is the pressure inside the drop of mercury of radius 3.00 mm at room temperature ? Surface tension of mercury at that temperature (20^o C) is 4.65×10^−1 Nm^−1. The atmospheric pressure is 1.01×10^5 Pa. Also give the excess pressure inside the drop.
13
Nov
What is the pressure inside the drop of mercury of radius 3.00 mm at room temperature ? Surface tension of mercury at that temperature (20^o C) is 4.65×10^−1 Nm^−1. The atmospheric pressure is 1.01×10^5 Pa. Also give the excess pressure inside the drop. The cylindrical tube of a spray pump has a cross-section of 8.0 [...]
The cylindrical tube of a spray pump has a cross-section of 8.0 cm^2 one end of which has 40 fine holes each of diameter 1.0 mm. If the liquid flow inside the tube is 1.5 m min^−1 , what is the speed of ejection of the liquid through the holes ?
12
Nov
The cylindrical tube of a spray pump has a cross-section of 8.0 cm^2 one end of which has 40 fine holes each of diameter 1.0 mm. If the liquid flow inside the tube is 1.5 m min^−1 , what is the speed of ejection of the liquid through the holes ? The cylindrical tube of [...]
Figures (a) and (b) refer to the steady flow of a (non-viscous) liquid. Which of the two figures is incorrect ? Why ?
12
Nov
Figures (a) and (b) refer to the steady flow of a (non-viscous) liquid. Which of the two figures is incorrect ? Why ? Figures (a) and (b) refer to the steady flow of a (non-viscous) liquid. Which of the two figures is incorrect ? Why ? November 12, 2020 Category: Chapter 14 - Waves , [...]
Glycerine flows steadily through a horizontal tube of length 1.5 cm and radius 1cm. If the amount of glycerine collected per second at one end is 4×10^−3kg/s. What is the pressure difference between the ends of the tube (Density of glycerine =1.3×10^3kg^−3 viscosity of glycerine – 0.83Pas)
12
Nov
Glycerine flows steadily through a horizontal tube of length 1.5 cm and radius 1cm. If the amount of glycerine collected per second at one end is 4×10^−3kg/s. What is the pressure difference between the ends of the tube (Density of glycerine =1.3×10^3kg^−3 viscosity of glycerine – 0.83Pas) 2 loops 3 loops and 4 loops Show [...]