(D) When a rod reaches a steady state,the temperature at every point along the rod remains constant over time,meaning $\frac{dT}{dt} = 0$ for all poin

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Each point of the rod is giving heat to its neighbour at the same rate at which it is receiving heat

(D) When a rod reaches a steady state,the temperature at every point along the rod remains constant over time,meaning $\frac{dT}{dt} = 0$ for all points.This does not mean heat flow has stopped; rather,it means that for any small cross-section of the rod,the rate of heat entering the section is exactly equal to the rate of heat leaving the section.Therefore,each point of the rod is transferring heat to its neighbor at the same rate at which it is receiving heat from the previous point.Thus,option $D$ is correct.

Class 11 Physics 2 Thermal Properties of Matter: Heat Transfer Basic of Heat Transfer and Conduction

Easy

When two ends of a rod wrapped with cotton are maintained at different temperatures and after some time every point of the rod attains a constant temperature,then

A
Conduction of heat at different points of the rod stops because the temperature is not increasing
B
Rod is bad conductor of heat
C
Heat is being radiated from each point of the rod
D
Each point of the rod is giving heat to its neighbour at the same rate at which it is receiving heat

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2 Thermal Properties of Matter: Heat Transfer

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Basic of Heat Transfer and Conduction

The value of the temperature gradient is $80\,^{\circ}C/m$ on a rod of $0.5\,m$ length. If the temperature of the hot end is $30\,^{\circ}C$, what is the temperature of the cold end?

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$A$ piece of glass is heated to a high temperature and then allowed to cool. If it cracks,a probable reason for this is the following property of glass:

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The heat is flowing through a rod of length $50 \ cm$ and area of cross-section $5 \ cm^2$. Its ends are respectively at $25^\circ C$ and $125^\circ C$. The coefficient of thermal conductivity of the material of the rod is $0.092 \ kcal/m \cdot s \cdot ^\circ C$. The temperature gradient in the rod is

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In a steady state of thermal conduction,the temperatures of the ends $A$ and $B$ of a $20 \, cm$ long rod are $100^\circ C$ and $0^\circ C$ respectively. What will be the temperature of the rod at a point at a distance of $6 \, cm$ from the end $A$ of the rod (in $^\circ C$)?

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The temperature gradient in a rod of $0.5 \ m$ long is $80 \ ^oC/m$. If the temperature of the hotter end of the rod is $30 \ ^oC$,then the temperature of the cooler end is ...... $^oC$.

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When two ends of a rod wrapped with cotton are maintained at different temperatures and after some time every point of the rod attains a constant temperature,then

Similar Questions

The value of the temperature gradient is $80\,^{\circ}C/m$ on a rod of $0.5\,m$ length. If the temperature of the hot end is $30\,^{\circ}C$, what is the temperature of the cold end?

$A$ piece of glass is heated to a high temperature and then allowed to cool. If it cracks,a probable reason for this is the following property of glass:

In a steady state of thermal conduction,the temperatures of the ends $A$ and $B$ of a $20 \, cm$ long rod are $100^\circ C$ and $0^\circ C$ respectively. What will be the temperature of the rod at a point at a distance of $6 \, cm$ from the end $A$ of the rod (in $^\circ C$)?

The temperature gradient in a rod of $0.5 \ m$ long is $80 \ ^oC/m$. If the temperature of the hotter end of the rod is $30 \ ^oC$,then the temperature of the cooler end is ...... $^oC$.

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