A plate of dimensions 3l ', 5l on heating "%" change in area is "2%" .A change in the volume of a metal cube of same material of dimension 5l, 6l, 7l on heating to double the raise in temperature of the plate

A copper wire of length l increases in length by 0.3 % on heating from 20^@C to 40^@C. Then percentage change in area of copper plate of dimensions 3 lxx 2l on heating from 20^@C to 40^@C is

If percentage change in length is 1% with change in temperature of a cuboid object (l xx 2l xx3l) then what is precentage change in its area and volume.

A thin wire of length l when heated to a certain temperature increases its length by 1% . A sheet of the same material of area 2lxxl is heated to the same temperature then percentage increase in area will be :-

When a thin iron wire of length l is heated from a temperature T_1 to T_2 , a change of 1% in its length is observed. The percentage change in area of iron plate of dimension 2l xx l when it is heated from T_1 to T_2 is

Two metal plates of same area and thickness l_(1) and l_(2) are arranged in series If the thermal conductivities of the materials of the two plates are K_(1) and K_(2) The thermal conductivity of the combination is .

When solid is heated , its length changes according to the relation l=l_0(1+alphaDeltaT) , where l is the final length , l_0 is the initial length , DeltaT is the change in temperature , and alpha is the coefficient of linear is called super - facial expansion. the area changes according to the relation A=A_0(1+betaDeltaT) , where A is the tinal area , A_0 is the initial area, and beta is the coefficient of areal expansion. A metal disc having a circular hole at its center is heated . If the metal expands on heating , the diameter of the hole

The pressure of a gas of volume 22.4 l is 3 atm at certain temperature. Then find the pressure of the gas of volume 44.8 l at the same temperature.

A thin metal square plate has length l. when it is heated from 0^(@)C to 100^(@)C its length increases by 1%. What is the percentage increase in the area of the plate?

The moment of inertia of a thin square plate ABCD, fig, of uniform thickness about an axis passing through the centre O and perpendicular to the plane of the plate is where l_1, l_2, l_3 and l_4 are respectively the moments of intertial about axis 1,2,3 and 4 which are in the plane of the plate.