Let the x-y plane be the boundary between two trasparent media. Medium 1 in Z > 0 has a refractive index of $\sqrt{2}$ and medium 2 with z < 0 has a refractive index of $\sqrt{3}$. A ray of light in medium 1 given by the vector $\mathrm{A}=6\sqrt{3} \hat{\mathrm{i}}+8\sqrt{3} \hat{\mathrm{j}}-10 \hat{\mathrm{k}}$ is incident on the plane of separation. The angle of refraction in medium 2 is