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The unit of thermal conductivity is :...

The unit of thermal conductivity is :

A

`Js^(-1)m^(-1@)C^(-1)`

B

`Jsm^(-1@)C^(-1)`

C

`Js^(-1)m^(-1@)C`

D

`Js^(-1)m^(@)C^(-1)`

Text Solution

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

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  2. A rod of 1 m length and area of cross-section 1 cm^2 is connected acr...

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  3. The unit of thermal conductivity is :

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  4. Two rods are connected as shown. The rods are of same length and same ...

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

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

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

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

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

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

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

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

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

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

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  15. The temperature of a black body becomes half of its original temperatu...

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  16. The MKS unit of Stefan's constant is

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

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

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

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  20. The effective area of a black body is 0.1 m^2 and its temperature is 1...

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