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An ideal Black-body at room temperature ...

An ideal Black-body at room temperature is thrown into a furnace. It is observed that

A

initially it is the darkest body and at later times brightest

B

it is the darkest body at all times

C

it cannot be distinguised at all time

D

initially it is the darkest body and at later times cannot be distinguished

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The correct Answer is:
A
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CP SINGH-HEAT TRANSFER-Exercises
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  4. A hot body will radiate maximum energy if its surface is

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  5. A black body does not (i) emit radiation (ii) absorb radiation ...

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  6. The thermal radiation emited by a body is proportional to T^(n) where ...

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  9. Two spherical black bodies of radii R(1) and R(2) and with surface tem...

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  10. Two bodies A and B having equal surface areas are maintained at temper...

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  15. A solid at temperature T(1) is kept in an evacuated chamber at tempera...

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  16. A system S receives heat continuously from an electric heater of power...

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  17. A spherical black body of radius r radiates power P, and its rate of c...

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  18. The temperature of an isolated black body falls from T(1) to T(2) in t...

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