Huygen's principle of secondary waves | Wave optics | Physics | Khan Academy
8:48
Huygen's theory of light & wavefronts | Wave optics | Physics | Khan Academy
12:29
Snell's laws proof using Huygen's principle | Wave optics | Physics | Khan Academy
14:38
Diffraction and interference of light | Physics | Khan Academy
15:43
Diffraction: Why Does It Happen? (Physics Explained for Beginners)
13:45
Nuclear fusion | Physics | Khan Academy
10:20
Reflection laws proof using Huygen's principle | Wave optics | Physics | Khan Academy
8:55
Angle between wavefront & rays of light | Wave optics | Physics | Khan Academy
9:33