Surface tension is an atomic/molecular property of
Adding detergents to water helps in removing dirty greasy stains. This is because
Cohesive force is experienced between
If Temperature increases,the surface tension of a liquid
Soap helps in cleaning clothes, because
The spherical shape of rain-drop is due to
A thread is tied slightly loose to a wire frame as in figure and frame is dipped into a soap solution
A thin liquid film formed between a U-shaped wire and a light slider supports a weight of
If a glass rod is dipped in mercury and withdrawn out
Oil spreads over the surface of water
A thin metal disc of radius r floats on water
Two pieces of glass plate one upon the other
Writing on black board with a piece of chalk is possible by the property of
At which of the following temperatures
It is easy to wash clothes in hot water because its
Due to which property of water
A pin or a needle floats on the surface of water, the reason for this is
The property utilized in the manufacture of lead shots is
A 10cm long wire is placed horizontally on the surface of water
A piece of ice is floating on water in a container
On heating water, bubbles being formed at the bottom of the vessel detach and rise
For a given material, the Youngs modulus is 2.4 times that of rigidity modulus. Its Poissons ratio is
The force required to separate two glass plates of area
Force necessary to pull a circular plate of
A wire is stretched under a force. If the wire suddenly snaps, the temperature of the wire
Two wires of same material and radius have their lengths in ratio 1: 2. If these wires are stretched by the same force, the strain..
If Youngs modulus of elasticity Y for a material is 1.5 times its rigidity coefficient Î· , the Poissons ratio Ïƒ will be
The following four wires are made of the same material. Which of these will have the largest extension when the same tension is ap..
A wire of length L and radius r fixed at one end and a force F applied to the other end produces an extension l . The extension pr..
Which of the following relation is true?
The Poissons ratio cannot have the value
A U-tube of uniform cross section (see Fig) is partially filled with a liquid I. Another liquid II which does not mix with liquid ..
The Bulk modulus for an incompressible liquid is
The hollow shaft is ... than a solid shaft of same mass, material and length.
If in a wire of Young\s modulus Y, longitudinal strain X is produced, then the potential energy stored in its unit volume will be
Two wires of length l, radius r and length 2l, radius 2r respectively having same Young\s modulus are hung with a weight mg. Net e..
A particular force (F )applied on a wire increases its length by 2 Ã—10^-3 m. To increase the wire\s length by 4 Ã—10^-3 m t..
Energy stored in stretching a string per unit volume is
The adjacent graph shows the estension of a wire of length 1 m suspended from the top roof at one end and with a load W connec..
Which of the following substances has the highest elasticity?
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