This video lecture from Waves (F.Sc. first year physics) This video explains stationary waves produced when both ends of pipe open ,conditions for their production and experimental demonstration , also in this video you will learn that when and how waves produced stationary waves with both ends open of pipe,also concept of nodes and anti nodes formation. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.