A diffraction grating results in an intensity on the screen of NIL where I is the intensity from a single slit in the grating. allows you to determine what elements might be present in a sample of gas. is usually only composed of a few slits. produces a diffraction pattern identical to that of a double slit, but can be made as a more compact device.

A diffraction grating results in an intensity on the screen of NIL where I is the intensity from a single slit in the grating. allows you to determine what elements might be present in a sample of gas. is usually only composed of a few slits. produces a diffraction pattern identical to that of a double slit, but can be made as a more compact device.