Free JEE ADVANCED CRASH COURSE for 2021, Set your reminder for | New Era(IIT JEE/NEET)

Free JEE ADVANCED CRASH COURSE for 2021, Set your reminder for 8 PM. 1st time learners can use code "kpsirlive" for free access. It's completely free. Today's topic - Ray optics.
Link of class-
https://bit.ly/2WL3Wvs