CS601 ka paper Kafi cancaptual tha paradoxical mcqs main say be aya but Hal wo he kr py ga jis k concept achy say clear hai ek numarkle tha Long main aur ek log main critical angle wala aya tha reflection refrection btani thee critical angle dea howa tha necy dosey angle be mention tha I finally said concept achy say clear kr k mcqs read kr k jay ga I sure paper within time atamp kr lo gy Allha ap ko kamyab kry