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How many watt be radiated by a spherical black body of radius 7 cm at 1000 K ?

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MBD PUBLICATION-THERMAL PROPERTIES OF MATTER (HEAT TRANSFER)-QUESTION BANK
  1. State the unit of co- efficient of thermal conductivity in C.G.S syste...

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  2. Two spheres of the same material have radii 1m and 14m and are at temp...

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  3. How many watt be radiated by a spherical black body of radius 7 cm at ...

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  4. What is SI unit of Stefan's constant

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  5. What is the absorption co-efficient of a perfect white body ?

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  6. What is the absorptive power of a perfectly black body ?

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  7. Land and sea breeze are due to the process of .

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  8. We feel hot , When we stand near a fire due to the process of .

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  9. The absorptive power of a black body is .

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  10. The dimension of Stefan's constant is .

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  11. The dimension of Wien's constant is .

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  12. Woolen clothes keep the body warm as wool is of heat.

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  13. The absorptive power of a perfectly black body is.

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  14. perfect insulator has a value of a thermal conductivity .

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  15. Heat is transmitted from higher to lower temperature through actual ma...

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  16. Convection of heat takes place in

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  17. Wave length of heat radiation are between to .

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  18. The material medium is not required for the propagation of heat in

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  19. In a room containing air, heat can go from one place to another by

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  20. Example of diathermanous body is .

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