A3. Natural light I_(0) is incident on a system of crossed polaroids The intensity of light that has passed through the system __ 1.0 2. (I_(0))/(3) 3. I_(0) 4(I_(0))/(2)

The correct answer is 1.0.<br /><br />When natural light $I_{0}$ is incident on a system of crossed polaroids, the intensity of the light that has passed through the system remains unchanged. This is because the crossed polaroids effectively cancel out the polarization of the incident light, resulting in the same intensity as the original light.<br /><br />Therefore, the intensity of the light that has passed through the system is $I_{0}$.