Question

A beam of polarized light with intensity I0 and polarization angle θ0 strikes a polarizer with transmission axis θTA. What angle θ should be used in Malus's law to calculate the transmitted intensity I1?

Answer 1

Answer:

θ$^{TA}$ - θ$^{0}$

Step-by-step explanation:

According to the theory of Malus, when a completely plane polarized light is incident on an analyzer, the intensity 'I' of the light wave transmitted by the analyzer is proportional to the square of the cosine of angle between the transmission axes of the polarizer and analyzer. Therefore:

Using the theory of Malus, we need to estimate the angle between the transmission axis θ$^{TA}$ and the polarization axis θ$^{0}$.

Thus:

angle θ = θ$^{TA}$ - θ$^{0}$