GENERAL GEOLOGY

Detailed explanation-1: -Polarizing microscopy is effective to examine food products that exhibit optical anisotropy or birefringence. Several food components are birefringent, notably starch granules, fat crystals, and protein fibers.

Detailed explanation-2: -The polarized light microscope is used to analyze the anisotropy of a specimen’s optical properties, such as refraction and absorption. Optical anisotropy is a consequence of molecular order, which renders material properties-such as absorption, refraction, and scattering-that depend on the polarization of light.

Detailed explanation-3: -Polarized light microscopes work by converting unpolarized light to polarized light. One way in which this can be achieved is by absorption of light vibrational movement in one specific direction. This can be done by certain natural minerals, including tourmaline, or by synthetic films that perform the same function.

Detailed explanation-4: -Cross-polarisation, with regard to visible light, is a process wherein two polarisers with perpendicular orientation to one another are used on the incident and reflected lights. Under cross-polarised light birefringent structures which are otherwise invisible become apparent.