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A full radiator at 0^(@)C radiates energ...

A full radiator at `0^(@)C` radiates energy at the rate of `3.2 xx 10^(4) erg cm^(-2) s^(-1)`. Find (i) Stefan's constant and (ii) the amount of heat radiated per second by a sphere of radius 4 cm and at a temperature of `1000^(@)C`.

A

`3.042xx10^(9)` erg/s

B

`2.024xx10^(8)` erg/s

C

`3.042xx10^(8)` erg/s

D

`2.024xx10^(9)` erg/s

Text Solution

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The correct Answer is:
A
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FIITJEE-HEAT AND TEMPERATURE-ASSIGNMENT PROBLEMS (OBJECTIVE) (LEVEL-I)
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