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Due to the property of surface tension a drop or bubble tries to contract and so compresses the matter enclosed. This in turn increases the internal pressure which prevents fu
11.12 Applications of Bernoullis Theorem.
(i) Attraction between two closely parallel moving boats (or buses) : When two boa
When one end of capillary tube of radius r is immersed into a liquid of density d which wets the sides of the capillary tube (water and capillary tube of gla
If a liquid is filled in a vessel up to height H and a hole is made at a depth h below the free surface of the liquid as shown in fig. then taking the level
If a body of weight W is placed on the liquid surface, whose surface tension is T. If F is the minimum force required to pull it away from the water
(1) When mercury is split on a clean glass plate, it forms gl
Properties of colloidal solutions:-
The main properties of the colloidal solutions are discussed below:-
Physical properties:-
(1) Translatory equilibrium : When a body of density P and volume V is immersed in a liquid of density O, the forces acting on the body are
The ratio of change in configuration to the original configuration is called strain.
Being the ratio of two like quantities, it has no dimensions and units.
If by gradually increasing the load on a vertically suspended metal wire, a graph is plotted between stress (or load) and longitudinal stra
(1) Formation of double bubble : If r1 and r2 are the radii of smaller and larger bubble and P0 is the atmospheric
The normal force exerted by liquid at rest on a given surface in contact with it is called thrust of liquid on that surface.
The normal force (or thrust) exerted by
The equation of continuity is derived from the principle of conservation of mass.
A non-viscous liquid in streamline flow passes thro
We know that a liquid assumes the shape of the vessel in which it is contained i.e. it can not oppose permanently any force that tries to change its shape. As the eff
Angle of contact between a liquid and a solid is defined as the angle enclosed between the tangents to the liquid surface and the solid surface inside the liquid, both the tan
Fluid is the name given to a substance which begins to flow when external force is applied on it. Liquids and gases are fluids. Fluids do not have their own shape but take the
11 Bernoulli's Theorem.
According to this theorem the total energy (pressure energy, potential energy and kinetic energy) per unit volume or mass o
(1) Stream line flow : Stream line flow of a liquid is that flow in which each element of the liquid passing through a point travels along the same path
It states that if gravity effect is neglected, the pressure at every point of liquid in equilibrium of rest is same.
Poiseuille studied the stream-line flow of liquid in capillary tubes. He found that if a pressure difference (P) is maintained across the two ends of a capillary tube
In case of steady flow of a fluid when a layer of fluid slips or tends to slip on adjacent layers in contact, the two layer exert tangential force on each other which tries to
When a body moves through a fluid, the fluid in contact with the body is dragged with it. This establishes relative motion in fluid layers near the body, due to which viscous
When a drop of radius R splits into n smaller drops, (each of radius r) then surface area of liquid increases. Hence the work is to be done against
Whether the liquid will be in equilibrium in the form of a drop or it will spread out; depends on the relative strength of the force due to surface tension at the three interf
Introduction
Law of Conservation of Energy :Energy can neither be created nor be destroyed.
Law of Conservation of Mechanical Energy: It states that&nbs
It is defined as the ratio of normal stress to longitudinal strain within limit of proportionality.Y=
When a deforming force is applied on a body then the strain does not change simultaneously with stress rather it lags behind the stress. The lagging of strain behind the stres
A wave is a disturbance which propagates energy and momentum from one place to the other without the transport of matter.
(1) Necessary properties of the me
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