Radiation from a black body at the therm...

Radiation from a black body at the thermodynamic temperature `T_(1)` is measured by a small detector at distance `d_(1)` from it. When the temperature is increased to `T_(2)` and the distance to `d_(2)` , the power received by the detector is unchanged. What is the ratio `d_(2)//d_(1)`?

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Radiation from a black body at the thermodynamic temperature `T_(1)` is measured by a small detector at distance `d_(1)` from it. When the temperature is increased to `T_(2)` and the distance to `d_(2)` , the power received by the detector is unchanged. What is the ratio `d_(2)//d_(1)`?

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