Properties of matter Questions

In a U-tube diameter of two limbs are 0.5 cm and 1 cm respectively. and tube has filled with water (T = 72 dyne/cm) then liquid level difference between two limbs will be...

The lower surface of a cube is fixed. On its upper surface, force is applied at an angle of 30o from its surface. The change will be in its

The approximate depth of an ocean is 2700 m. The compressibility of water is 45.4 × 10-11 Pa-1 anddensity of water is 103 kg/m3.What fractional compression of water will be obtained at the bottom...

The bulk modulus of a spherical object is 'B'. If it is subjected to uniform pressure 'p', the fractional decrease in radius is :-

A solid sphere of radius r made of a soft material of bulk modulus K is surrounded by a liquid in a cylindrical container. A massless piston of area a floats on the surface of the liquid, covering ent...

Two wires are made of the same material and have the same volume. The first wire has cross-sectional area A and the second wire has cross-sectional area 3A. If the length of the first wire is increase...

A certain number of spherical drops of a liquid of radius r coalesce to form a single drop of radius R and volume V. If ′T′ is the surface tension of the liquid, then...

The following four wires are made of the same material. Which of these will have the largest. extension when the same tension is applied-

The length of needle floating on the surface of water is 1.5 cm. The force in addition to its weight required to lift the needle from water surface will be (surface tension of water = 7.5 N/cm) : -...

One end of a horizontal thick copper wire of length 2L and radius 2R is welded to an end of another horizontal thin copper wire of length L and radius R. When the arrangement is stretched by applying ...

The wettability of a surface by a liquid depends primarily on :-

The following foue wires are made of the same material. Which of these will have the large extension when the same tension is applied?

A given quantity of an ideal gas is at pressure p and absolute temperature T. The isothermal bulk modulus of the gas is

A wire elongates by l mm when a load W is hanged from it. If the wire goes over a pulley and two weights W each are hung at the two ends, the elongation of the wire will be (in mm)...

A 20 cm long capillary tube is dipped in water. The water rises up to 8 cm. If the entire arrangement is put in a freely falling elevator the length of water column in the capillary tube will be...

If S is stress and Y is Young′s modulus of material of a wire, the energy stored in the wire per unit volume is

Which of the following is affected by cohesive forces :-

Liquid rises to a height of 2cm in a capillary tube. The angle of contact between the solid and the liquid is zero. The tube is depressed more now so that the top of the capillary is only 1cm above th...

The surface tension of a liquid at its boiling point :

At critical temperature, the surface tension of a liquid becomes :