Three objects colored black,gray,and white can withstand hostile conditions up to $2800\,^oC$. These objects are thrown into a furnace where each of them attains a temperature of $2000\,^oC$. Which object will glow brightest?

  • A
    the white object
  • B
    the black object
  • C
    all glow with equal brightness
  • D
    gray object

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