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..
If Temperature increases,the surface tension of a liquid
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..
Cohesive force is experienced between
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..
Two pieces of glass plate one upon the other
The spherical shape of rain-drop is due to
Soap helps in cleaning clothes, because
A thin liquid film formed between a U-shaped wire and a light slider supports a weight of
Due to which property of water
If a glass rod is dipped in mercury and withdrawn out
The property utilized in the manufacture of lead shots is
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 ..
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..
Oil spreads over the surface of water
A thin metal disc of radius r floats on water
It is easy to wash clothes in hot water because its
Writing on black board with a piece of chalk is possible by the property of
Force necessary to pull a circular plate of
The force required to separate two glass plates of area
A 10cm long wire is placed horizontally on the surface of water
At which of the following temperatures
A pin or a needle floats on the surface of water, the reason for this is
The hollow shaft is ... than a solid shaft of same mass, material and length.
A piece of ice is floating on water in a container
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
On heating water, bubbles being formed at the bottom of the vessel detach and rise
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..
The Bulk modulus for an incompressible liquid is
Which of the following relation is true?
When the temperature of a glass is 20Â°C and pressure is changed
The Poissons ratio cannot have the value
A vessel contains oil over mercury. A homogeneous
Energy stored in stretching a string per unit volume is
Which of the following substances has the highest elasticity?
there is a circular tube in a vertical plane. two liquid which do not mix
There is a circular tube in a vertical plane. Two
Which of the following rods of same material undergoes maximum elongation when subjected to a given force?
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..
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