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When a metal rod attains same temperatur...

When a metal rod attains same temperature through out its length, then its conductivity is

A

zero

B

Infinity

C

one

D

None

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-THERMAL PROPERTIES OF MATTER-EXERCISE-IA
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  2. For an Ideal conductor, thermal resistance is

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  3. When a metal rod attains same temperature through out its length, then...

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  4. Under steady state of conduction, the temperature at a cross-section o...

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  5. During severe winter in the low temperature zones of the world, the su...

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  6. The two ends of a metal rod are maintained at temperatures 100^(@)Cand...

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  7. Two identical bodies are made of a material for which the heat capacit...

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  8. Which of the following combination of properties would be most desirab...

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  9. While measuring the thermal conductivity of a liquid we keep the upper...

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  10. It is hotter over top of the fire than at same distance on the sides d...

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  11. Thermal radiation falls in

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  12. If the distance between the source & absorber is halved then Intensity...

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  13. The material of prism used for obtaining spectrum of heat radiations i...

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  14. Rate of transfer of heat is maximum in the case of

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  15. A calorimeter full of hot water is hung in vaccum. It will

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  16. The ends of an well-lagged copper bar of length L are held at steady t...

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  17. S.I. Unit of temperature gradient is

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  18. Amount of heat conducted through a metal rod is directly proportional ...

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  19. A long metallic bar is carrying heat from one of its ends to the other...

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