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\section{Aims} % Section titles are automatically converted to all-caps.  % Section numbering is automatic.  1. To observe Faraday effect in this lab, which says that the rotation of plane of polarization of light changes when applying a magnetic field: $$I=I_{0}cos2[\theta_{1}−\theta_{0}]$$  where $I_{0}$ is the original light intensity and I is the light intensity passing through two polarizers at angles $\theta_{1}$ and $\theta_{0}$.  \newline $\theta_{0}$.\newline  2.To experimentally determine the Verdet constant of a glass tube, which describes the strength of Faraday effect for a particular material: $$\varphi_{B}=C_{v}BL$$  where $\varphi$ is the shift in polarization, B is the strength of applied magnetic field and L is the length of the glass tube.