A steel wire of length `4.7m` and cross-sectional area `3.0times10^(-5)m^(2)` stretches by the same amount as a copper wire of length `3.5m` and cross-sectional area of `4.0times10^(-5)m^(2)` under a given load. What is the ratio of the Young's modulus of steel to that of copper?

A steel wire of length 4.5 m and cross-sectional area 3 xx 10^(-5) m^(2) stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 4 x 10^(-5) m^(2) under a given load. The ratio of the Young's modulus of steel to that of copper is

A steel wire of length 4.7 m and cross-sectional area 3 xx 10^(-6) m^(2) stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 4 xx 10^(-6) m^(2) under a given load. The ratio of Young's modulus of steel to that of copper is

A steel wire of length 4.7m and cross-section 3.0 xx 10^(-5) m^(2) stretched by the same amount as a copper wire of length 3.5m and cross-section 4.0 xx 10^(-5) m^(2) under a given load. What is the ratio of Young's modulus of steel to that of copper ?

A steel wire of length 4.7 m and cross-section 3.0 xx 10 ^(2) m ^(2) stretches by the same amount as a copper wire of length 3.5 m and cross-section 4.0x x 10^(2) m^(2) under a given load. What is the ratio of the Young.s modulus of steel to that of copper?

A wire of length L and cross-sectional area A is made of a material of Young's modulus Y. IF the wire is stretched by an amount x, the workdone is

A steel wire of length l and cross sectional area A is stretched by 1 cm under a given load. When the same load is applied to another steel wire of double its length and half of its cross section area, the amount of stretching (extension) is

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 steel wire of length 60 cm and area of cross section 10^(-6)m^(2) is joined with a n aluminium wire of length 45 cm and are of cross section 3xx10^(-6)m^(2) . The composite string is stretched by a tension of 80 N. Density of steel is 7800kgm^(-3) and that of aluminium is 2600kgm^(-3) the minimum frequency of tuning fork. Which can produce standing wave in it with node at joint is

Calculate the force required to incrase the length of wire of cross-sectional area 10^(-6) m^(2) by 50% if the Young's modulus of the material of the wire is 90 xx 10^(9) Pa .

A steel bolt of cross-sectional area A_(b) = 5 xx 10^(-5) m^(2) is passed through a cylindrical tube made of aluminium. Cross-sectional area of the tube material is A_(t)= 10^(-4) m^(2) and its length is l = 50 cm . The bolt is just taut so that there is no stress in the bolt and temperature of the assembly increases through /_\theta=10^@C . Given, coefficient of linear thermal expansion of steel, alpha_(b) = 10^(-5)//^@C . Young's modulus of steel Y_(b)=2xx10^(11)N//m^(2) Young's modulus of Al, Y_(t)=10^(11) N//m^(2) , coefficient of linear thermal expansion of Al alpha_(t)=2xx10^(-5)//^@C The tensile stress in bolt is