Light rays
Yelminy Chris
English - June 17, 2021 19:52 - 4 minutes - 1.99 MBPhysics Science Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
In optics a ray is an idealized model of light, obtained by choosing a line that is perpendicular to the wavefronts of the actual light, and that points in the direction of energy flow.