Biochemistry A variety of basic assays are used to detect autoantibodies. Nephelometry is based on the principle of: A Light attenuated in intensity by scattering B Refraction of light C Reduced transmission of light D Filtration of solutes by kidney 💡 Explanation A variety of basic assays are used to detect autoantibodies. Nephelometry is based on the principle of: ✓ Correct Answer: A. Light attenuated in intensity by scattering