Final answer:
The question relates to the field of Physics, particularly optics, involving the passage of polarized light through a filter. Malus's Law is used to calculate the final intensity after considering the angle of the filter and the initial intensity.
Step-by-step explanation:
The question about finding the value of the power 86° in the context given seems to be related to the passage of light through a polarizing filter, as indicated by the reference to the intensity of polarized light and the angle of the polarizing filter relative to the light's polarization direction.
According to Malus's Law, the intensity (I) of polarized light after passing through a polarizing filter is given by: I = I0cos2θ, where I0 is the initial intensity and θ is the angle between the light's polarization direction and the axis of the filter.
For an angle of 89.0° and an initial intensity of 150 W/m², the calculation would be as follows:
I = 150 W/m² × cos2(89.0°) = 150 W/m² × (0.01745)2
Thus, after performing the calculations, we would obtain the final intensity value in watts per square meter.