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.
Report Abuse. DIFFRACTION-diffraction is bending of light at the corner of an obstacle. eg: DIFFRACTION OF LIGHT REFRACTION-Refraction is the bending of a wave when it enters a medium where it's speed is different.efraction-is the change in direction of waves which occurs when waves travel from one medium to another Diffraction-is the bending of waves around obstacles and opening.