Irradiance of a surface Formula
Equation for calculate irradiance of a surface is,
Ee = [(∂ • Φe) / A]
where,∂ = the partial derivative symbol,
Φe = radiant flux,
A = area,
Ee = Irradiance of a surface
∂ = the partial derivative symbol,
Φe = radiant flux,
A = area,
Ee = Irradiance of a surface