GEOLOGY
PHYSICAL MINERALOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
color and pleochroism
|
|
crystal shape and refractive index
|
|
isotropism
|
|
relief
|
|
cleavage
|
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: -Polarized light microscopy is capable of providing information on absorption color and optical path boundaries between minerals of differing refractive indices, in a manner similar to brightfield illumination, but the technique can also distinguish between isotropic and anisotropic substances.
Detailed explanation-3: -The polarizing microscope is particularly useful in the study of birefringent materials such as crystals and strained non-crystalline substances. It is widely used for chemical microscopy and optical mineralogy. The current specimen is equipped with a quick change, centering nosepiece and a graduated, rotating stage.
Detailed explanation-4: -Polarized light microscopy uses polarized light that travels through a double refracting material, then generated into a high-contrast image via the collection of light by a second polarizing filter.