notes chud gaye ðŸ˜
https://reddit.com/link/1hcez26/video/n6ndjg8z1d6e1/player
question solve kar raha tha 2-4 lenghty ray optics ke aagaye aur gusse me pen ghussa di tab pata chala ki OC ke bachi hui copy ko use kar raha tha rough work ke liye ðŸ˜ðŸ˜