A composite rod consists of a steel rod of length `25 cm` and area `2A` and a copper rod of length `50 cm` and area `A`. The composite rod is subjected to an axial load `F`. If the Young's moduli of steel and copper are in the ratio `2: 1` then

A steel rod of length 20 3/26 is cut down from a rod of length 56 1/5 what when is the remaining length of the rod?

A steel uniform rod of length 2L cross sectional area A and mass Mis set rotating in a horizontal plane about an axis passing through the centre. If Y is the Young's modulus for steel, find the extension in the length of the rod.

A uniform rod of length (L) and area of cross-section (A) is subjected to tensil load (F). If sigma be the Poisson's ratio and Y be the Young's modulus of the material of the rod, then find the volumetric strain produced in the rod.

A steel rod of length 20 3/26 is cut out from a rod of length 56 1/5 . What then is the remaining length of the rod?

Cylinder copper rod of length 1m and a cylinder steel rod of length 1.5m are joined together end to end. The cross sectional area of eac rod is 3.14cm . The free ends of steel rod and copper rods are maintained at 0^(@)C and 100^(@)C respectively. The surfaces of rods are thermally insulated. Find the temperature of copper steel junction. (Given thermal conductivity of steel =46J//m-s.^(@)C and the thermal conductivity of copper =386J//m-s.^(@)C )

A brass rod of length 2 m and corss-sectinal area 2.0 cm^(2) is attached to end to a steel rod of length L and corss-sectinal area 1.0 cm^(2) . The compound rod is subjected to equal and opposite pulls of magnitude 5 xx 10^(4) N at its ends. If the elongations of the two rods are equal, then the length of the steel rod L is (Y_("brass") = 1.0 xx 10^(11) Nm^(-2) and y_("steel") = 2.0 xx 10^(11) Nm^(-2))

A brass of length 2 m and cross-sectional area 2.0 cm^(2) is attached end to end to a steel rod of length and cross-sectional area 1.0 cm^(2) . The compound rod is subjected to equal and oppsite pulls of magnitude 5 xx 10^(4) N at its ends. If the elongations of the two rods are equal, the length of the steel rod (L) is { Y_(Brass) = 1.0 xx 10^(11) N//m^(2) and Y_(steel) = 2.0 xx 10^(11) N//m^(2)

A brass of length 2 m and cross-sectional area 2.0 cm^(2) is attached end to end to a steel rod of length and cross-sectional area 1.0 cm^(2) . The compound rod is subjected to equal and oppsite pulls of magnitude 5 xx 10^(4) N at its ends. If the elongations of the two rods are equal, the length of the steel rod (L) is { Y_(Brass) = 1.0 xx 10^(11) N//m^(2) and Y_(steel) = 2.0 xx 10^(11) N//m^(2)

A uniform steel rod of length 1m and area of cross section 20 cm^2 is hanging from a fixed support. Find the increase in the length of the rod.

A composite rod is made by joining a copper rod, end to end, with a second rod of different material but of the same area of cross section. At 25^(@)C , the composite rod is 1 m long and the copper rod is 30 cm long. At 125^(@)C the length of the composite rod increases by 1.91 mm . When the composite rod is prevented from expanding by holding it between two rigid walls, it is found that the constituent rods have remained unchanged in length inspite of rise of temperature. Find young's modulus and the coefficient of linear expansion of the second rod (Y of copper =1.3xx10^(10) N//m^(2) and a of copper =17xx10^(-6)//K ).