[Malaika Israr]

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Malaika Israr

Jazakallah khair sir ! i understood! but…i think u forgot to explain how to and where to draw the normal line ….cuz u just explained the questions and how the rays bend when travelling ….if u did explain how to and where to daarw normal lie ..then i’m sorry i couldn’t find it ..could u pls explain only that specific part again? 🙂