A rigid bar of mass 15 kg is supported symmetrically by three wires each 2 m long. Those at each end are of copper and middle one is of iron. Determine the ratio of their diameters if each is to have the same tension. Young's modulus of elasticity for copper and steel are `110 xx 10^(9)Nm^(-2)` and `190 xx 10^(9)Nm^(-2)` respectively.

A rigid bar of mass 15 kg is supported symmetrically by three wires each 2 m long. Those at each end aer of copper and middle one is of iron. Determine the ratio of their diameters if each is to have the same tensoin. Young's modulus of elasticity for copper and steel are 110 xx 10^(9)Nm^(-2) and 190 xx 10^(9)Nm^(-2) respectively.

A rigid bar of mass M is supported symmetrically by three wires each of length l. Those at each end are of copper and the middle one is of iron. The ratio of their diameters, if each is to have the same tension, is equal to

A rigid bar of mass M is supported symmetrically by three wires each of length l . Those at each end are of copper and the middle one is of ion. The ratio of their diameters, if each is to have the same tension, is equal to

A rigid bar of mass M is supported symmetrically by three wires each of length I. Those at each end are of copper and the middle one is of iron. What is the ratio of their diameters (D_("copper"))/(D_("iron")) if each wire is to have ratio same tension?

A rigid bar of mass 15 kg is supported symmetrically by three wires, each of length 2 m. The wires at the endpoints are made of copper and the middle one is made of steel. If the tension in each wire is the same, then the diameter of copper wire to the diameter of steel wire is ["Given, "Y_("copper")=1.1xx10^(11)"N m"^(-2) and Y_("steel")=1.9xx10^(11)"N m"^(-2)]

Steel and copper wires of same length are stretched by the same weight one after the other. Young's modulus of steel and copper are 2xx10^(11)(N)/(m^2) and 1.2xx10^(11)(N)/(m^2) . The ratio of increase in length is

A block of weight 100 N is suspended by copper and steel wires of same cross sectional area 0.5 cm^(2) and, length sqrt(3) m and 1m, respectively. Their other ends are fixed on a ceiling as shown in figure. The angles subtended by copper and steel wires with ceiling are 30^(@) and 60^(@) , respectively. If elongation in copper wire is (Delta l_(C)) and elongation in steel wire is (Delta l_(s)) , then the ratio (Delta l_(C))/(Delta l_(s)) is - [Young's modulus for copper and steel are 1 xx 10^(11) N//m^(2) and 2 xx 10^(11) N//m^(2) , respectively]

If a wire of length 4 m and cross-sectional area of 2 m^(2) is stretched by a force of 3 kN, then determine the change in length due to this force, Given, Young's modulus of material of wire is 110 xx 10^(9) Nm^(-2)