Which statement describes a light wave passing through space? A. Vibrations of the light source are perpendicular to the direction
OB. Vibrations of the electric field are perpendicular to vibrations of
C. Vibrations of the electric field are parallel to vibrations of the
OD. Vibrations of the electric field are paralel to the direction that the
that the wave travels.
the magnetic field.
magnetic field.
wave travels

When preparing a tlc slide of a reference standard material (rsm), a solvent or mixture of solvents is used to dissolve the rsm and transfer it into the tlc plate. how does its polarity affects the rf of the rsm? the rf will increase depending of it polarity, but never decrease it does not affects it since the solvent evaporates before the insertion of the tlc slide in the jar a polar solvent will definitively reduce the retention factor a polar solvent will increase rf