For a given material, the Youngs modulus is 2.4 times that of rigidity modulus. Its Poissons ratio is
A wire is stretched under a force. If the wire suddenly snaps, the temperature of the wire
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..
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 Temperature increases,the surface tension of a liquid
The following four wires are made of the same material. Which of these will have the largest extension when the same tension is ap..
If Youngs modulus of elasticity Y for a material is 1.5 times its rigidity coefficient Î· , the Poissons ratio Ïƒ will be
Cohesive force is experienced between
The spherical shape of rain-drop is due to
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..
Two pieces of glass plate one upon the other
Due to which property of water
A thin liquid film formed between a U-shaped wire and a light slider supports a weight of
Soap helps in cleaning clothes, because
If a glass rod is dipped in mercury and withdrawn out
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 ..
Oil spreads over the surface of water
It is easy to wash clothes in hot water because its
The property utilized in the manufacture of lead shots is
A thin metal disc of radius r floats on water
A 10cm long wire is placed horizontally on the surface of water
Force necessary to pull a circular plate of
Writing on black board with a piece of chalk is possible by the property of
At which of the following temperatures
The force required to separate two glass plates of area
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 hollow shaft is ... than a solid shaft of same mass, material and length.
A pin or a needle floats on the surface of water, the reason for this is
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
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
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
A vessel contains oil over mercury. A homogeneous
The Poissons ratio cannot have the value
there is a circular tube in a vertical plane. two liquid which do not mix
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
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