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  • The rate of radiation of black body is E J/sec. The rate of radiation (in E) of this black body at 273oC will beOption: 1 16

The rate of radiation of black body is E J/sec. The rate of radiation (in E) of this black body at 273oC will be

Option: 1

16


Option: 2

8


Option: 3

4


Option: 4

1


Answers (1)

best_answer

As we have learnt,

Stefan's Law -

Radiant energy emitted by a perfectly black body per unit area per sec is directly proportional to 4th power of the temperature of the body.

 

\frac{E_2}{E_1} = \left(\frac{T_2}{T_1}\right)^4 = \left(\frac{546}{273} \right )^4 = 16 

 

Posted by

shivangi.bhatnagar

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