Young's Double Slit Experiment, Diffraction Grating, Light Wave Interference - Physics

This video explains Young's double-slit experiment vs diffraction grating, including the diagram, equation, what did it prove, demonstrate the concept of interference and diffraction, simplifications, interference pattern, intensity profile obtained from the single-slit experiment, lines per mm, white light and calculations of the bright and dark fringes with different orders of brightness.

0:00 Young's double-slit experiment
10:43 Diffraction grating
15:32 Worked examples