Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
THe ends of a rod of uniform thermal conductivity are maintained at different ( constant ) temperatures. After the steady state is acheieved
04
Oct
THe ends of a rod of uniform thermal conductivity are maintained at different ( constant ) temperatures. After the steady state is acheieved THe ends of a rod of uniform thermal conductivity are maintained at different ( constant ) temperatures. After the steady state is acheieved October 4, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
The figure shows three different arrangements of materials 1, 2 and 3 ( identical in shape ) to form a wall. The thermal conductivities are k1, k2 and k3 , respectively , and k1 > k2 > k3. The left side of the wall is 20 degree higher than the right side.
04
Oct
The figure shows three different arrangements of materials 1, 2 and 3 ( identical in shape ) to form a wall. The thermal conductivities are k1, k2 and k3 , respectively , and k1 > k2 > k3. The left side of the wall is 20 degree higher than the right side. 2 and 3 [...]
A conducting cylindrical rod of uniform cross-sectional area is kept between two large chambers which are at temperatures 100∘C and 0∘C, respectively. The cconductivety of the rod increases with x, where x is distance from 100∘C end. The temperature profile of the rod in steady -state will be as
04
Oct
A conducting cylindrical rod of uniform cross-sectional area is kept between two large chambers which are at temperatures 100∘C and 0∘C, respectively. The cconductivety of the rod increases with x, where x is distance from 100∘C end. The temperature profile of the rod in steady -state will be as A conducting cylindrical rod of uniform [...]
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A conducting cylindrical rod of uniform cross-sectional area is kept between two large chambers which are at temperatures 100∘C and 0∘C ,
respectively. The cconductivety of the rod increases with x ,
where x is distance from 100∘C end. The temperature profile of the rod in steady -state will be as ,
The two opposite faces of a cubical piece of iron (thermal conductivity = 0.2 CGS units) are at 100∘C and 0∘C in ice. If the area of a surface is 4 cm^2 , then the mass of ice melted in 10 minutes will b
04
Oct
The two opposite faces of a cubical piece of iron (thermal conductivity = 0.2 CGS units) are at 100∘C and 0∘C in ice. If the area of a surface is 4 cm^2 , then the mass of ice melted in 10 minutes will b The two opposite faces of a cubical piece of iron (thermal [...]
A solid cube and a solid sphere of the same material have equal surface area. Both are at the same temperature 120∘C, then
04
Oct
A solid cube and a solid sphere of the same material have equal surface area. Both are at the same temperature 120∘C, then A solid cube and a solid sphere of the same material have equal surface area. Both are at the same temperature 120∘C then October 4, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
Two identical conducting rods are first connected independently to two vessels, one containing water at 100∘C and the other containing ice at 0∘C. In the second case, the rods are joined end to end and connected to the same vessels. Let q1 and q2 gram per second be the rate of melting of ice in the two cases respectively. The ratio q1/q2 is
04
Oct
Two identical conducting rods are first connected independently to two vessels, one containing water at 100∘C and the other containing ice at 0∘C. In the second case, the rods are joined end to end and connected to the same vessels. Let q1 and q2 gram per second be the rate of melting of ice in [...]
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one containing water at 100∘C and the other containing ice at 0∘C. In the second case ,
the rods are joined end to end and connected to the same vessels. Let q1 and q2 gram per second be the rate of melting of ice in the two cases respectively. The ratio q1/q2 is ,
Two identical conducting rods are first connected independently to two vessels ,
Ice has formed on a shallow pond, and a steady state has been reached, with the air above the ice at −5.0∘C and the bottom of the pond at 40∘C. If the total depth of ice + water is 1.4 m, (Assume that the thermal conductivities of ice and water are 0.40 and 0.12 cal /m C∘s, respectively.) The thickness of ice layer is
04
Oct
Ice has formed on a shallow pond, and a steady state has been reached, with the air above the ice at −5.0∘C and the bottom of the pond at 40∘C. If the total depth of ice + water is 1.4 m, (Assume that the thermal conductivities of ice and water are 0.40 and 0.12 cal [...]
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(Assume that the thermal conductivities of ice and water are 0.40 and 0.12 cal /m C∘s ,
and a steady state has been reached ,
Ice has formed on a shallow pond ,
respectively.) The thickness of ice layer is ,
with the air above the ice at −5.0∘C and the bottom of the pond at 40∘C. If the total depth of ice + water is 1.4 m ,
Three rods made of same material and having same cross-section have been joined as shown in figure. Each rod is of same length. The left and right ends are kept at 0 ∘ C and 90 ∘ C respectively. The temperature of the junction of the three rods will be
04
Oct
Three rods made of same material and having same cross-section have been joined as shown in figure. Each rod is of same length. The left and right ends are kept at 0 ∘ C and 90 ∘ C respectively. The temperature of the junction of the three rods will be A wall has two layers [...]
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A wall has two layers A and B ,
each made of different materials. Both the layers have the same thickness. The thermal conductivity of the material of A is twice that of B. Under thermal equilibrium ,
the temperature difference across the wall is 36 ∘ C. The temperature difference across the layer A is ,
A cylinder of radius R made of a material of thermal conductivity K1 is surrounded by a cylindrical shell of inner radius R and outer radius 2R made of a material of thermal conductivity K2. The two ends of the combined system are maintained at two different temperatures. There is no loss of heat across the cylindrical surface and the system is in steady state. The effective thermal conductivity of the system is
04
Oct
A cylinder of radius R made of a material of thermal conductivity K1 is surrounded by a cylindrical shell of inner radius R and outer radius 2R made of a material of thermal conductivity K2. The two ends of the combined system are maintained at two different temperatures. There is no loss of heat across [...]
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A wall has two layers A and B ,
each made of different materials. Both the layers have the same thickness. The thermal conductivity of the material of A is twice that of B. Under thermal equilibrium ,
the temperature difference across the wall is 36 ∘ C. The temperature difference across the layer A is ,
A wall has two layers A and B, each made of different materials. Both the layers have the same thickness. The thermal conductivity of the material of A is twice that of B. Under thermal equilibrium, the temperature difference across the wall is 36 ∘ C. The temperature difference across the layer A is
04
Oct
A wall has two layers A and B, each made of different materials. Both the layers have the same thickness. The thermal conductivity of the material of A is twice that of B. Under thermal equilibrium, the temperature difference across the wall is 36 ∘ C. The temperature difference across the layer A is A [...]
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A wall has two layers A and B ,
each made of different materials. Both the layers have the same thickness. The thermal conductivity of the material of A is twice that of B. Under thermal equilibrium ,
the temperature difference across the wall is 36 ∘ C. The temperature difference across the layer A is ,