What is the importance or application of the refraction of light through a glass plate?
There are probably many, but I’ll just tell you one that we use in the lab that I am working at right now. If you know the material that the plate (or some sample) is made from (silicon, silicon oxide, amorphous silicon, or any homogeneous translucent material), you can use the refraction of light to measure the thickness of the sample. This becomes important in nanotechnology, for example if you need a layer of silicon oxide that was only 100 nanometers thick, or even if there are multiple layers of different substances, this machine can measure the thicknesses of each of those layers.
