19 : Different Type Of Barrier Will From Different Pattern Of Reflected Water Waves. Phenomenon Of Diffraction
23 : Constructive & Destructive Interference. To Construct How Interference Of Water Waves Happens (Part 1)
24 : Constructive & Destructive Interference. To Construct How Interference Of Water Waves Happens (Part 2)
26 : Interference Of Light. Young Double Slit Experiment (Part 2) & Pattern Of Fringes In Interference Of Light.
37 : Using Young's Double Slit Experiment In Sound. The Variations That Affect Sound Interference (Part 1)
38 : Using Young's Double Slit Experiment In Sound, the Variations That Affect Sound Interference (Part 2)