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Surface temperature of sun is 6000 K. Co...

Surface temperature of sun is `6000 K`. Considering sun as a perfectly black body, calculate the energy given out by sun per second in radiation. Radius of sun`= 6.9 xx 10^(8) m` and `sigma = 5.67 xx 10^(-8) J s^(-1)m^(-2) K^(-4)`

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The correct Answer is:
`4.396 xx 10^(36) J s^(-1)`
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The temperature of the sun is 6000 K and is treated as a black body. The solar heat energy radiated by the sun is 10^(9)W//m^(2) . What is the temperature of a black body if it radiated heat energy of 10^(5)W//m^(2) ?

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