A surface at temperature `T_(0)K` receives power `P` by radiation from a small sphere at temperature `T ltT_(0)` and at a distance d. If both `T` and d are doubled the power received by the surface will become .

The power P is received by a surface at temperature T_(0)K from a small sphere at temperature

A black metal foil is warmed by radiation from a small sphere at temperature T and at a distance d it is found that the power received by the foil is P If both the temperature and the distance are doubled the power received by the foil will be .

A black metal foil is warmed by radiation from a small sphere at temperature T and at a distance d it is found that the power received by the foil is P If both the temperature and the distance are doubled the power received by the foil will be .

A black metal foil is warmed by radiation from a sphere at temperature Tat a distance d. If the power received is P, find the power received when both the temperature and distance are doubled.

A Black metal foil receives radiation of power P from a hot sphere at absolute temperature T, kept at a distance d. If the temperature is doubled and distance is halved, then Power will be

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) ?

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) ?

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) ?