Final answer:
Changing the concentration of sugar in a sugar-water solution affects the rotation of the plane of polarization due to optical activity, but not the intensity of linear polarized light.
Step-by-step explanation:
The question whether changing the sugar concentration of a sugar-water solution affects the intensity of linear polarized light can be answered with knowledge from physics, particularly optics. Changing the concentration of a sugar solution does not affect the intensity of polarized light; instead, it affects the amount and direction of rotation of the plane of polarization due to the solution's optical activity. The optical activity is caused by the asymmetric shape of the sugar molecules in water. As the concentration of the sugar increases, the solution becomes more optically active, thus rotating the plane of polarized light more significantly. However, this change in rotation does not imply a change in the intensity of the light, but in the orientation of its polarization.