Hi guys, Welcome to the Advanced Video Search Engine, and you are watching Snell's law example 1 | Physical Processes | MCAT | Khan Academy. That video is uploaded by khanacademymedicine at 2015-08-18T15:47:22-07:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [5MUAgzSUHRc]