366811 A steel rail of length $5m$ and area of cross section $40c{m}^2$ is prevented from expanding along its length while the temperature rises by ${10}^{\circ }C$. If coefficient of linear expansion and young's modulus of steel are $1.2\times {10}^{-5}{K}^{-1}$ and $2\times {10}^{11}N{m}^{-2}$ respectively, the force developed in the rail is approxmately:

366812 Two rods of different metals having the same area of cross-section $A$ are placed between the two massive walls as shown in figure. The first rod has a length $l_1$, coefficient of linear expansion ${\alpha }_1$ and Young's modulus $Y_1$. The corresponding quantities for second rod are $l_2,{\alpha }_2$ and $Y_2$. The temperature of both the rods is now raised by $\mathrm{\Delta }T$. The displacement of the junction is

366813 A metallic bar of Young's modulus, $0.5\times {10}^{11}{Nm}^{-2}$ and coefficient of linear thermal expansion ${10}^{-5^{\circ }}{C}^{-1}$, length 1 m and area of cross-section ${10}^{-3}{m}^2$ is heated from $0^{\circ }C$ to ${100}^{\circ }C$ without expansion or bending. The compressive force developed in it is:

366814 The coefficient of real expansion of mercury is $0.18\times {10}^{-3}{C}^{-1}.$ If the density of mercury at $0^{\circ }C$ is $13.6g/cc,$ its density at $473K$ will be

366811 A steel rail of length $5m$ and area of cross section $40c{m}^2$ is prevented from expanding along its length while the temperature rises by ${10}^{\circ }C$. If coefficient of linear expansion and young's modulus of steel are $1.2\times {10}^{-5}{K}^{-1}$ and $2\times {10}^{11}N{m}^{-2}$ respectively, the force developed in the rail is approxmately:

366812 Two rods of different metals having the same area of cross-section $A$ are placed between the two massive walls as shown in figure. The first rod has a length $l_1$, coefficient of linear expansion ${\alpha }_1$ and Young's modulus $Y_1$. The corresponding quantities for second rod are $l_2,{\alpha }_2$ and $Y_2$. The temperature of both the rods is now raised by $\mathrm{\Delta }T$. The displacement of the junction is

366813 A metallic bar of Young's modulus, $0.5\times {10}^{11}{Nm}^{-2}$ and coefficient of linear thermal expansion ${10}^{-5^{\circ }}{C}^{-1}$, length 1 m and area of cross-section ${10}^{-3}{m}^2$ is heated from $0^{\circ }C$ to ${100}^{\circ }C$ without expansion or bending. The compressive force developed in it is:

366814 The coefficient of real expansion of mercury is $0.18\times {10}^{-3}{C}^{-1}.$ If the density of mercury at $0^{\circ }C$ is $13.6g/cc,$ its density at $473K$ will be

366811 A steel rail of length $5m$ and area of cross section $40c{m}^2$ is prevented from expanding along its length while the temperature rises by ${10}^{\circ }C$. If coefficient of linear expansion and young's modulus of steel are $1.2\times {10}^{-5}{K}^{-1}$ and $2\times {10}^{11}N{m}^{-2}$ respectively, the force developed in the rail is approxmately:

366812 Two rods of different metals having the same area of cross-section $A$ are placed between the two massive walls as shown in figure. The first rod has a length $l_1$, coefficient of linear expansion ${\alpha }_1$ and Young's modulus $Y_1$. The corresponding quantities for second rod are $l_2,{\alpha }_2$ and $Y_2$. The temperature of both the rods is now raised by $\mathrm{\Delta }T$. The displacement of the junction is

366813 A metallic bar of Young's modulus, $0.5\times {10}^{11}{Nm}^{-2}$ and coefficient of linear thermal expansion ${10}^{-5^{\circ }}{C}^{-1}$, length 1 m and area of cross-section ${10}^{-3}{m}^2$ is heated from $0^{\circ }C$ to ${100}^{\circ }C$ without expansion or bending. The compressive force developed in it is:

366814 The coefficient of real expansion of mercury is $0.18\times {10}^{-3}{C}^{-1}.$ If the density of mercury at $0^{\circ }C$ is $13.6g/cc,$ its density at $473K$ will be

366811 A steel rail of length $5m$ and area of cross section $40c{m}^2$ is prevented from expanding along its length while the temperature rises by ${10}^{\circ }C$. If coefficient of linear expansion and young's modulus of steel are $1.2\times {10}^{-5}{K}^{-1}$ and $2\times {10}^{11}N{m}^{-2}$ respectively, the force developed in the rail is approxmately:

366812 Two rods of different metals having the same area of cross-section $A$ are placed between the two massive walls as shown in figure. The first rod has a length $l_1$, coefficient of linear expansion ${\alpha }_1$ and Young's modulus $Y_1$. The corresponding quantities for second rod are $l_2,{\alpha }_2$ and $Y_2$. The temperature of both the rods is now raised by $\mathrm{\Delta }T$. The displacement of the junction is

366813 A metallic bar of Young's modulus, $0.5\times {10}^{11}{Nm}^{-2}$ and coefficient of linear thermal expansion ${10}^{-5^{\circ }}{C}^{-1}$, length 1 m and area of cross-section ${10}^{-3}{m}^2$ is heated from $0^{\circ }C$ to ${100}^{\circ }C$ without expansion or bending. The compressive force developed in it is:

366814 The coefficient of real expansion of mercury is $0.18\times {10}^{-3}{C}^{-1}.$ If the density of mercury at $0^{\circ }C$ is $13.6g/cc,$ its density at $473K$ will be