To understand the effect of chiral substances on plane polarized light as a function of wavelength

1. Superposition of one Right Circularly Polarised Light(RCPL) and one Left Circularly Polarised Light(LCPL) generates a __________ polarised light.
2. In an anisotropic medium difference in RI of RCPL and LCPL causes ______________ in a plane polarised light.
3. In an anisotropic medium difference in absorbance of RCPL and LCPL causes ______________ in a plane polarised light.
4. If the difference between the RI of RCPL and LCPL is positive in an anisotropic medium, the optical rotation will be _________.