Explain why this should produce circularly-polarized light. 5. Now rotate the top polarizer. The intensity of the light transmitted through the wave plate remains approximately constant as you rotate the analyzer (top polarizer) [you may need to slightly adjust the wave-plate angle]. Explain why this happens. D. Chiral molecules and polarized light We discuss circular polarization because many molecules interact differently with left-handed and right-handed light due to their molecular chirality, or handedness.