Central (GMT â 6 hours) Saskatchewan, province of Canada, one of the Prairie Provinces. It is one of only two Canadian provinces without a saltwater coast, and it is the only province whose boundaries are all wholly artificial (i.e., not formed by natural features).
A diffraction grating is a optical material or device that is usually designed to break up white light into the various colors of the visible spectrum.laze angles are used to concentrate a diffraction grating output on a certain band region of the light spectrum. This is done to obtain a maximum resolution in a particular band of light known as the Blaze wavelength.
Reflection is the rebounding of light from the surface of an object. Refraction is the passing of light through a medium (may be liquid or a transparent solid) with some change in the velocity of light during the process.eflection: When light beam is in contact with a reflective polished surface than it traces its path according to laws of reflection. Diffraction: Its a phenomenon by which light bends around the corner of small obstacles and it spreads out. (You can imagine this obstacle as a very sharp corner of a lab plane mirror).