Calculate the surface temperature of the planet,if the energy radiated by unit area in unit time is $5.67 \times 10^4 \, W$. (Assume the planet to be a black body).

  • A
    $1273 \, ^\circ C$
  • B
    $1000 \, ^\circ C$
  • C
    $727 \, ^\circ C$
  • D
    $727 \, K$

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