84. The luminous flux of 1 lm formed by radiation with λ = 555 nm, corresponding to the flow of energy, equal to 0.00160 watts. What is the flow of energy corresponds to a luminous flux of 100 lm formed by radiation, for which the relative spectral sensitivity of the eye V = 0,762?

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)