9 A beam of unpolarised light passes through a tourmaline

Last updated: 6/24/2023

9 A beam of unpolarised light passes through a tourmaline crystal A and then it passes through a second tourmaline crystal B oriented so that its principal is parallel to that of A The intensity of the emergent light is Now B is rotated by 45 about the ray The emergent light have intensity 3 2 11 2012 4