How to Calculate Malus Law?
Malus Law calculator uses Resultant Intensity = Intensity 1*(cos(Angle from Slit Center to Light Source))^2 to calculate the Resultant Intensity, Malus Law states that the intensity of plane-polarized light that passes through an analyzer varies as the square of the cosine of the angle between the plane of the polarizer and the transmission axes of the analyzer. Resultant Intensity is denoted by I symbol.
How to calculate Malus Law using this online calculator? To use this online calculator for Malus Law, enter Intensity 1 (I1) & Angle from Slit Center to Light Source (θ) and hit the calculate button. Here is how the Malus Law calculation can be explained with given input values -> 7.392544 = 9*(cos(0.4363323129985))^2.