140969 Two wires of same length having radius of 2 $\mathrm{mm}$ and $1.5 \mathrm{~mm}$ respectively are loaded with same weights. Extension of the second wire is double than that of the first wire. What is the ratio of the Young's modulus of the first wire to that of the second wire?

140970 One end of a steel rod of radius $\mathbf{1 0 . 0} \mathrm{mm}$ and length $50.0 \mathrm{~cm}$ is clamped on a horizontal table. The other end of the rod is pulled with a force of magnitude $10.0 \times \pi \mathrm{kN}$. This force is uniform across the flat surface of the rod and is perpendicular to it. The change in the length of the rod due to this applied force is (Use Young's modulus $=\mathbf{2 . 0} \times 10^{11} \mathrm{~N} / \mathrm{m}^{2}$ )

140972 What is the work done in stretching a uniform metal wire of length from $2 \mathrm{~m}$ to $2.004 \mathrm{~m}$ with an area of cross section $10^{-6} \mathrm{~m}^{2}$ ?
[Young's modulus of the wire $=2 \times 10^{11} \mathrm{~N} / \mathrm{m}^{2}$ ]

140973 A steel wire and a copper wire are joined end to end having equal cross section. The elongation of two wires are found to be equal under tension. What is the ratio of the length of the steel to the length of copper wire?
(Young modulus of steel $=2.0 \times 10^{11} \mathrm{Nm}^{-2}$ and
Young modulus of copper $=1.1 \times 10^{11} \mathrm{Nm}^{-2}$ )

140969 Two wires of same length having radius of 2 $\mathrm{mm}$ and $1.5 \mathrm{~mm}$ respectively are loaded with same weights. Extension of the second wire is double than that of the first wire. What is the ratio of the Young's modulus of the first wire to that of the second wire?

140970 One end of a steel rod of radius $\mathbf{1 0 . 0} \mathrm{mm}$ and length $50.0 \mathrm{~cm}$ is clamped on a horizontal table. The other end of the rod is pulled with a force of magnitude $10.0 \times \pi \mathrm{kN}$. This force is uniform across the flat surface of the rod and is perpendicular to it. The change in the length of the rod due to this applied force is (Use Young's modulus $=\mathbf{2 . 0} \times 10^{11} \mathrm{~N} / \mathrm{m}^{2}$ )

140972 What is the work done in stretching a uniform metal wire of length from $2 \mathrm{~m}$ to $2.004 \mathrm{~m}$ with an area of cross section $10^{-6} \mathrm{~m}^{2}$ ?
[Young's modulus of the wire $=2 \times 10^{11} \mathrm{~N} / \mathrm{m}^{2}$ ]

140973 A steel wire and a copper wire are joined end to end having equal cross section. The elongation of two wires are found to be equal under tension. What is the ratio of the length of the steel to the length of copper wire?
(Young modulus of steel $=2.0 \times 10^{11} \mathrm{Nm}^{-2}$ and
Young modulus of copper $=1.1 \times 10^{11} \mathrm{Nm}^{-2}$ )

140969 Two wires of same length having radius of 2 $\mathrm{mm}$ and $1.5 \mathrm{~mm}$ respectively are loaded with same weights. Extension of the second wire is double than that of the first wire. What is the ratio of the Young's modulus of the first wire to that of the second wire?

140970 One end of a steel rod of radius $\mathbf{1 0 . 0} \mathrm{mm}$ and length $50.0 \mathrm{~cm}$ is clamped on a horizontal table. The other end of the rod is pulled with a force of magnitude $10.0 \times \pi \mathrm{kN}$. This force is uniform across the flat surface of the rod and is perpendicular to it. The change in the length of the rod due to this applied force is (Use Young's modulus $=\mathbf{2 . 0} \times 10^{11} \mathrm{~N} / \mathrm{m}^{2}$ )

140972 What is the work done in stretching a uniform metal wire of length from $2 \mathrm{~m}$ to $2.004 \mathrm{~m}$ with an area of cross section $10^{-6} \mathrm{~m}^{2}$ ?
[Young's modulus of the wire $=2 \times 10^{11} \mathrm{~N} / \mathrm{m}^{2}$ ]

140973 A steel wire and a copper wire are joined end to end having equal cross section. The elongation of two wires are found to be equal under tension. What is the ratio of the length of the steel to the length of copper wire?
(Young modulus of steel $=2.0 \times 10^{11} \mathrm{Nm}^{-2}$ and
Young modulus of copper $=1.1 \times 10^{11} \mathrm{Nm}^{-2}$ )

140969 Two wires of same length having radius of 2 $\mathrm{mm}$ and $1.5 \mathrm{~mm}$ respectively are loaded with same weights. Extension of the second wire is double than that of the first wire. What is the ratio of the Young's modulus of the first wire to that of the second wire?

140970 One end of a steel rod of radius $\mathbf{1 0 . 0} \mathrm{mm}$ and length $50.0 \mathrm{~cm}$ is clamped on a horizontal table. The other end of the rod is pulled with a force of magnitude $10.0 \times \pi \mathrm{kN}$. This force is uniform across the flat surface of the rod and is perpendicular to it. The change in the length of the rod due to this applied force is (Use Young's modulus $=\mathbf{2 . 0} \times 10^{11} \mathrm{~N} / \mathrm{m}^{2}$ )

140972 What is the work done in stretching a uniform metal wire of length from $2 \mathrm{~m}$ to $2.004 \mathrm{~m}$ with an area of cross section $10^{-6} \mathrm{~m}^{2}$ ?
[Young's modulus of the wire $=2 \times 10^{11} \mathrm{~N} / \mathrm{m}^{2}$ ]

140973 A steel wire and a copper wire are joined end to end having equal cross section. The elongation of two wires are found to be equal under tension. What is the ratio of the length of the steel to the length of copper wire?
(Young modulus of steel $=2.0 \times 10^{11} \mathrm{Nm}^{-2}$ and
Young modulus of copper $=1.1 \times 10^{11} \mathrm{Nm}^{-2}$ )