Which statement is most accurate? Responses The greater the optical density of the material, the lower the refractive index. The greater the optical density of the material, the lower the refractive index. The greater the physical density of a material, the higher the refractive index. The greater the physical density of a material, the higher the refractive index. The more optically dense the material, the higher the refractive index. The more optically dense the material, the higher the refractive index. The greater the physical density of a material, the lower the refractive index.