Unpolarized Light source light Chiral Polarized compound light Rotated polarized ligh Sample cell The two enantiomers of a pair of enantiomers rotate the plane of polarized light by the same degree but in opposite directions One enantiomer rotates light in the clockwise direction and is called dextrorotatory (+ The other enantiomer rotates light in the anticlockwise direction and is called levorotatory(-) The two enantiomers of a pair of enantiomers rotate the plane of polarized light by the same degree but in opposite directions One enantiomer rotates light in the clockwise direction and is called dextrorotatory (+) The other enantiomer rotates light in the anticlockwise direction and is called levorotatory (-)