A body of mass `3.14 kg` is suspended from one end of a wire of length `10 m`. The radius of cross-section of the wire is changing uniformly from `5xx10^(-4) m` at the top (i.e. point of suspension) to `9.8xx10^(-4) m` at the bottom . Young's modulus of elasticity is `2xx10^(11) N//m^(2)`. The change in length of the wire is

A body of mass 3.14 kg is suspended from one end of a non uniform wire of length 10m, such that the radius of the wire is changing uniformly from 9.8xx10^(-4) m at one end to 5xx10^(-4) m at the other end. Find the change in length of the wire in mm. Young's modulus of the material of the wire is 2xx10^(11)N//m^(2) (mass of wire is negligible)

A body of mass 6.28 kg is suspended from one end of a wire of length 10 m. The radius of the wire is changing uniformly from 19.6xx10^-4m at one end to 10 xx 10^-4 m at the order end. Find the change in the length of the wire. [Y=2xx10^11N//m^2]

A wire of area of cross section 1xx10^(-6)m^(2) and length 2 m is stretched through 0.1 xx 10^(-3)m . If the Young's modulus of a wire is 2xx10^(11)N//m^(2) , then the work done to stretch the wire will be

An iron wire of length 4 m and diameter 2 mm is loaded with a weight of 8 kg. if the Young's modulus Y for iron is 2xx10^(11)N//m^(2) then the increase in the length of the wire is

A copper wire of length 4.0 mm and area of cross-section 1.2 cm^(2) is stretched with a force of 4.8 xx 10^(3) N. If Young's modulus for copper is 1.2xx10^(11) N//m^(2) , the increases in the length of the wire will be

An iron wire of length 4m and diameter 2mm is loaded with a weight of 8kg. If the Young's modulus 'Y' for iron is 2xx10^11 Nm^(-2) then the increase in length of the wire is

A 20 N stone is suspended from a wire and its length changes by 1% . If the Young's modulus of the material of wire is 2xx10^(11)N//m^(2) , then the area of cross-section of the wire will be