As shown in the figure, a ray \(AB\) of unpolarized light enters from water of refractive index \(n_w=\frac{4}{3}\) into a medium of refractive index \(n_p=\frac{4}{\sqrt{3}}\) after passing through a glass plate of refractive index \(n_g=1.5\) and a layer of water. At a particular incident angle \(i\), the reflected ray \(CD\) is polarized in the direction as shown in the figure. The value of \(i\) (in degrees) is:
