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A black body is at temperature of 500 K....

A black body is at temperature of `500 K`. It emits energy at rate which is proportional to

A

`25xx10^(4)J//s`

B

`25xx10^(8)J//sm^(2)`

C

`5xx10^(2)J//s`

D

`3543J//sm^(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
`((dQ)/(dtA))=sigmaT^(4)`
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NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Stefans Law of Black Body Radiation)
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  2. A black body at high temperature T K radiates energy at the rate of E ...

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  3. A black body is at temperature of 500 K. It emits energy at rate which...

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  4. A black body at temperature 227^(@)C radiates heat at the rate of 5 ca...

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  5. If the temperature of the sun (black body) is doubled, the rate of ene...

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

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  7. A body at 300^(@)C radiates 10^(5) watt/m^(2). If the sun radiates 10^...

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  8. Two bodies A and B are placed in an evacuated vessel maintained at a t...

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  9. A metal ball of surface area 200 cm^(2) and temperature 527^(@)C is ...

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  10. A solid sphere cools at the rate of 2.8^(@)C per minute, when its temp...

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  11. Ratio of rate of radiation of heat of body at 227^(@)C to that of the ...

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  12. The ratio of the rate of radiation of heat by a perfectly black body a...

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  13. A body radiates heat at the rate of 50 J/s at 300 K. when the same bod...

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  14. The rate of emission of heat energy of an iron ball of radius 5 cm is ...

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  15. A cube, which may be regarded as a perfectly black body, radiates heat...

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  16. The amount of thermal radiations emitted from one square metre area of...

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  17. A black body radiates 3 J/cm^(2) s when its temperature is 127^(@)C. H...

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  18. The rate of loss of heat by radiation frombody at 400^(@)C is R. then ...

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  19. A ball is coated with lamp black. Its temperature is 327^(@)C and is p...

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  20. A black body at a temperature of 227^(@)C radiates heat energy at the ...

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