146581 Two slabs $A$ and $B$ of different materials but of the same thickness are joined end to end to form a composite slab. The thermal conductivities of $A$ and $B$ are $K_{1}$ and $K_{2}$ respectively. A steady temperature difference of $12^{\circ} \mathrm{C}$ is maintained across the composite slab. If $K_{1}=\frac{K_{2}}{2}$, the temperature difference across slab $A$ is
146582 Three rods of equal lengths are joined to form an equilateral triangle $A B C$. $D$ is the mid-point of $A B$. The coefficient of linear expansion is $\alpha_{1}$ for material of $\operatorname{rod} A B$ and $\alpha_{2}$ for material of rods $A C$ and $B C$. If the distance $D C$ remains constant for small changes in temperature, then
146583 A bimetallic strip is formed out of two identical strips, one of copper and the other of brass. The coefficients of linear expansion of the two metals are $\alpha_{C}$ and $\alpha_{B}$. On heating, the temperature of the strip increases by $\Delta T$ and the strip bends to form an arc of radius $R$. Then $R$ is proportional to
146581 Two slabs $A$ and $B$ of different materials but of the same thickness are joined end to end to form a composite slab. The thermal conductivities of $A$ and $B$ are $K_{1}$ and $K_{2}$ respectively. A steady temperature difference of $12^{\circ} \mathrm{C}$ is maintained across the composite slab. If $K_{1}=\frac{K_{2}}{2}$, the temperature difference across slab $A$ is
146582 Three rods of equal lengths are joined to form an equilateral triangle $A B C$. $D$ is the mid-point of $A B$. The coefficient of linear expansion is $\alpha_{1}$ for material of $\operatorname{rod} A B$ and $\alpha_{2}$ for material of rods $A C$ and $B C$. If the distance $D C$ remains constant for small changes in temperature, then
146583 A bimetallic strip is formed out of two identical strips, one of copper and the other of brass. The coefficients of linear expansion of the two metals are $\alpha_{C}$ and $\alpha_{B}$. On heating, the temperature of the strip increases by $\Delta T$ and the strip bends to form an arc of radius $R$. Then $R$ is proportional to
146581 Two slabs $A$ and $B$ of different materials but of the same thickness are joined end to end to form a composite slab. The thermal conductivities of $A$ and $B$ are $K_{1}$ and $K_{2}$ respectively. A steady temperature difference of $12^{\circ} \mathrm{C}$ is maintained across the composite slab. If $K_{1}=\frac{K_{2}}{2}$, the temperature difference across slab $A$ is
146582 Three rods of equal lengths are joined to form an equilateral triangle $A B C$. $D$ is the mid-point of $A B$. The coefficient of linear expansion is $\alpha_{1}$ for material of $\operatorname{rod} A B$ and $\alpha_{2}$ for material of rods $A C$ and $B C$. If the distance $D C$ remains constant for small changes in temperature, then
146583 A bimetallic strip is formed out of two identical strips, one of copper and the other of brass. The coefficients of linear expansion of the two metals are $\alpha_{C}$ and $\alpha_{B}$. On heating, the temperature of the strip increases by $\Delta T$ and the strip bends to form an arc of radius $R$. Then $R$ is proportional to
146581 Two slabs $A$ and $B$ of different materials but of the same thickness are joined end to end to form a composite slab. The thermal conductivities of $A$ and $B$ are $K_{1}$ and $K_{2}$ respectively. A steady temperature difference of $12^{\circ} \mathrm{C}$ is maintained across the composite slab. If $K_{1}=\frac{K_{2}}{2}$, the temperature difference across slab $A$ is
146582 Three rods of equal lengths are joined to form an equilateral triangle $A B C$. $D$ is the mid-point of $A B$. The coefficient of linear expansion is $\alpha_{1}$ for material of $\operatorname{rod} A B$ and $\alpha_{2}$ for material of rods $A C$ and $B C$. If the distance $D C$ remains constant for small changes in temperature, then
146583 A bimetallic strip is formed out of two identical strips, one of copper and the other of brass. The coefficients of linear expansion of the two metals are $\alpha_{C}$ and $\alpha_{B}$. On heating, the temperature of the strip increases by $\Delta T$ and the strip bends to form an arc of radius $R$. Then $R$ is proportional to
146581 Two slabs $A$ and $B$ of different materials but of the same thickness are joined end to end to form a composite slab. The thermal conductivities of $A$ and $B$ are $K_{1}$ and $K_{2}$ respectively. A steady temperature difference of $12^{\circ} \mathrm{C}$ is maintained across the composite slab. If $K_{1}=\frac{K_{2}}{2}$, the temperature difference across slab $A$ is
146582 Three rods of equal lengths are joined to form an equilateral triangle $A B C$. $D$ is the mid-point of $A B$. The coefficient of linear expansion is $\alpha_{1}$ for material of $\operatorname{rod} A B$ and $\alpha_{2}$ for material of rods $A C$ and $B C$. If the distance $D C$ remains constant for small changes in temperature, then
146583 A bimetallic strip is formed out of two identical strips, one of copper and the other of brass. The coefficients of linear expansion of the two metals are $\alpha_{C}$ and $\alpha_{B}$. On heating, the temperature of the strip increases by $\Delta T$ and the strip bends to form an arc of radius $R$. Then $R$ is proportional to