A brass rod of length `1M`, area `1 mm^(2)` and Young's modulus `120xx10^(9) N//m^(2)` is connected with steel rod of length `1m`, area `1mm^(2)` and Young's modulus `60xx10^(9)N//m^(2)`. Then the net stress so that extension of system is `0.2mm`
A stress of 3.18 xx 10^(8) Nm^(-2) is applied to a steel rod of length 1m along its length, its Young's modulus is 2 xx 10^(11) Nm^(-2) . Then the elongation produced in the rod (in mm) is
A stress of 3.18xx10^(8)" Nm"^(-2) is applied to a steel rod of length 1 m along its length, its Young's modulus is 2xx10^(11)"Nm"^(-2) . Then the elongation in mm produced in the rod, is
A wire having Young's modulus 1.2xx10^(11) N//m^(2) is subjected to the stress of 2.4xx10^(7) N//m^(2) . If the length of the wire is 10m, the extension produced in it is
The diameter of a brass rod is 4 mm and Young's modulus of brass is 9 xx 10^(10) N//m^(2) . The force required to stretch by 0.1 % of its length is
The diameter of a brass rod is 4 mm and Young's modulus of brass is 9xx10^(10)" N/m"^(2) . The force required to stretch by 0.1% of its length
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
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
The area of a cross-section of steel wire is 0.1 cm^(-2) and Young's modulus of steel is 2 x 10^(11) N m^(-2) . The force required to stretch by 0.1% of its length is
Young 's modulus of steel is 2.0 xx 10^(11)N m//(2) . Express it is "dyne"/cm^(2) .
A stress of 1 kg wt//mm^(2) is applied to a wire whose Young's modulus is 10^(12)"dyne"//cm^(2) . The percentage increase in its length is
