Part 1
In a hydraulic press, cross section area of the two massless piston are A1 = 4 cm^2 and A2 = 16 cm^2 15 N force is applied at a smaller piston to support a block of mass m kept on the other piston as shown. How much force is exterted at the other piston ?
20
Sep
In a hydraulic press, cross section area of the two massless piston are A1 = 4 cm^2 and A2 = 16 cm^2 15 N force is applied at a smaller piston to support a block of mass m kept on the other piston as shown. How much force is exterted at the other piston ? [...]
Equal weights of two liquids are mixed. If their densities are p1 and p2. What will be the density of the mixture ?
20
Sep
Equal weights of two liquids are mixed. If their densities are p1 and p2. What will be the density of the mixture ? Equal weights of two liquids are mixed. If their densities are p1 and p2. What will be the density of the mixture ? September 20, 2020 Category: Chapter 13 - Fluid Mechanics [...]
A drop of some liquid of volume 0.04 cm^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 20 cm^2 between the surfaces of the two slides. To separate the slides a force of 16×10^5 dyne has to be applied normal to the surfaces. The surface tension of the liquid is (in dyne.cm^−1):
20
Sep
A drop of some liquid of volume 0.04 cm^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 20 cm^2 between the surfaces of the two slides. To separate the slides a force of [...]
The surface tension and vapour pressure of water at 30oC is 7.2×10^−2Nm^−1 and 2.4×10^3 Pa respectively What is the radius of the smallest droplet of water which can be formed without evaporating at 30 degree C ?
20
Sep
The surface tension and vapour pressure of water at 30oC is 7.2×10^−2Nm^−1 and 2.4×10^3 Pa respectively What is the radius of the smallest droplet of water which can be formed without evaporating at 30 degree C ? A rectangular film of liquid is extended from (4cm×2cm) to (5cm×4cm). If the work done is 3 x [...]
The surface tension of soap solution at a temperature 20∘C is 2.5×10^−2Nm^−1.The excess pressure inside a bubble of soap solution of radius 6 mm is
20
Sep
The surface tension of soap solution at a temperature 20∘C is 2.5×10^−2Nm^−1.The excess pressure inside a bubble of soap solution of radius 6 mm is The surface tension of soap solution at a temperature 20∘C is 2.5×10^−2Nm^−1.The excess pressure inside a bubble of soap solution of radius 6 mm is September 20, 2020 Category: Chapter [...]
Under a pressure head, the rate of flow of orderly volume flow of liquid through a capillary tube is V, if the length of the capillary is doubled and the diameter of the bore is halved, the rate of flow would become
20
Sep
Under a pressure head, the rate of flow of orderly volume flow of liquid through a capillary tube is V, if the length of the capillary is doubled and the diameter of the bore is halved, the rate of flow would become if the length of the capillary is doubled and the diameter of the [...]
A drop of water detaches itself from the exit of a tap when (σ= surface tension of water. ρ= density of water, R= radius of the tap exit, r= radius of the drop)
20
Sep
A drop of water detaches itself from the exit of a tap when (σ= surface tension of water. ρ= density of water, R= radius of the tap exit, r= radius of the drop) A drop of water detaches itself from the exit of a tap when (σ= surface tension of water. ρ= density of water [...]
1000 droplets of water having 2mm diameter each coalesce to form a single drop. Given the surface tension water is 0.72 Nm^−1. The energy loss in the process is
20
Sep
1000 droplets of water having 2mm diameter each coalesce to form a single drop. Given the surface tension water is 0.72 Nm^−1. The energy loss in the process is 1000 droplets of water having 2mm diameter each coalesce to form a single drop. Given the surface tension water is 0.72 Nm^−1. The energy loss in [...]
Three liquids of densities p1,p2 and p3 (with p1>p2>p3 ) having the same value of surface tension T, rise to the same height in three identical capillaries The angles of contact θ1,θ2 and θ3 obey:-
20
Sep
Three liquids of densities p1,p2 and p3 (with p1>p2>p3 ) having the same value of surface tension T, rise to the same height in three identical capillaries The angles of contact θ1,θ2 and θ3 obey:- p2 and p3 (with p1>p2>p3 ) having the same value of surface tension T rise to the same height in [...]
A rectangular film of liquid is extended from (4cm×2cm) to (5cm×4cm). If the work done is 3 x 10^{-4}J, the value of the surface tension of the liquid is
20
Sep
A rectangular film of liquid is extended from (4cm×2cm) to (5cm×4cm). If the work done is 3 x 10^{-4}J, the value of the surface tension of the liquid is A rectangular film of liquid is extended from (4cm×2cm) to (5cm×4cm). If the work done is 3 x 10^{-4}J the value of the surface tension of [...]