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A rod of 1 m length and area of cross-se...

A rod of 1 m length and area of cross-section `1 cm^2` is connected across two heat reservoirs at temperatures `100^@C and 0^@C` as shown. The heat flow per second through the rod in steady state will be [Thermal conductivity of material of rod = 0.09 kilocal `m^(-1)s^(-1)(""^@C)]`

A

`9 xx 10^(-4)` kilocal / sec

B

9 kilocal/sec

C

0.09 kilocal/sec

D

`9 xx10^(-6)` kilocal /sec

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The correct Answer is:
A
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MOTION-HEAT TRANSFER & THERMAL EXPANSION -EXERCISE - 1
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  2. In which case does the thermal conductivity increase from left to righ...

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  4. The unit of thermal conductivity is :

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  6. Two rods A & B are connected in series as shown in fig. the conductivi...

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  7. What is the equivalent conductivity of rods A & B –

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  8. Two identical square rods of metal are welded end to end as shown in f...

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  9. One end of a 2.35m long and 2.0cm radius aluminium rod (K=235W.m^(-1)K...

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  10. A metallic rod is continuously heated at its two ends, the flow of hea...

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  11. Nature of thermal radiations is similar to the nature of -

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  12. Heat radiation exhibit the phenomenon of polarization which means that...

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  13. If transmission power of a surface is 1/6 and reflective power is 1/3,...

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  14. Out of the radiations falling on surface of a body, 30% radiations are...

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  15. If same amount of ice in placed in black and white cloth then ice in b...

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  18. Two bodies A and B are kept in an evacuated chamber at 27^@C. The temp...

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  19. The temperature of a body is increased by 50%. The amount of radiation...

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  20. Four bodies of specific heats s1,s2,s3 and s4 are cooled in the same s...

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