A wire of length 20 cm and area of cross-section `1.25 xx 10^-4 m^2` is subjected to a load of 2.5 kg (1 kgwt = 9.8 N). The elongation produced in the wire is in `10^-4` m. Calculate Young's Modulus of the material.

A wire of length 20 m and area of cross section 1.25 xx 10^(-4) m^2 is subjected to a load of 2.5 kg. (1 kgwt = 9.8N). The elongation produced in wire is 1 xx 10^(-4) m. Calculate Young’s modulus of the material.

A wire of length 10 m and area 0.625 xx 10^-4 m^3 is subjected to a load of 1.25 kg (1 kg wt = 9.8 N). The elongations produced in the wire is 0.5 xx 10^-4m . Calculate young's Modulus of the material.

A brass wire of length 4.5 m, with cross-section area of 3 xx 10^-5 m^2 and a copper wire of length 5.0 m with cross section area 4 xx 10^5 m^2 are stretched by the same load. The same elongation is produced in both the wires. Find the ratio of Young's Modulus of brass and copper.

A brass wire of length 4.5m with cross-section area of 3xx10^(-5) m^2 and a copper wire of length 5.0 m with cross section area 4xx10^(-5) m^2 are stretched by the same load. The same elongation is produced in both the wires. Find the ratio of Young’s modulus of brass and copper.

A metal wire of length 2.5 m and area of cross section 1.5 xx 10^-6 m^2 is stretched through 2 mm. Calculate the work done during stretching. (Y= 1.25xx 10^11 Nm^-2 ).

Two wires P and Q are of the same diameter and having their lengths in the ratio 5:3 , when the wires are subjected to the some load, the corresponding extensions are in the ratio 4:3 . Compare Young's Modulus of the materials P and Q.

A steel wire of length 5 m and area of cross-section 4 mm^(2) is stretched by 2 mm by the application of a force. If young's modulus of steel is 2xx10^(11)N//m^(2), then the energy stored in the wire is

A steel wire having cross sectional area 1.2mm^2 is stretched by a force of 120N. If a lateral strain of 1.455 mm is produced in the wire, calculate the Poisson’s ratio.

A block of weight 10 N is fastened to one end of a wire of cross sectional area 3 mm^2 and is rotated in a vertical circle of radius 20 cmk. The speed of the block at the bottom of the circle is 2ms^-1 . Find the elongation of the wire when the block is at the bottom of the circle. Young modulus of the material of the wire =2xx10^11Nm^-2 .

A metal wire of length L_1 and area of cross-section A is attached to a rigid support. Another metal wire of length L_2 and of the same cross-sectional area is attached to free end of the first wire. A body of mass M is then suspended from the free end of the second wire. If Y_1 and Y_2 are the Young's moduli of the wires respectively, the effective force constant of the system of two wire is