Question

According to stefan's law of energy radiated per second perunit area of a

Answer 1

$hi..$

The Stefan–Boltzmann law describes the power radiated from a black body in terms of its temperature.

Specifically, the Stefan–Boltzmann law states that the total energy radiated per unit surface area of a black body across all wavelengths per unit time (also known as the black-body radiant emittance) is directly proportional to the fourth power of the black body's thermodynamic temperature.

The constant of proportionality σ, called the Stefan–Boltzmann constant, is derived from other known physical constants.

$hope \: it \: helped..$