Arun Kumar
Last Activity: 10 Years ago
Hello Student,
Huygens considered light to be a wave. He envisioned a wave crest advancing by imagining each point along the wave crest to be source point for small, circular, expanding wavelets, which expand with the speed of the wave. The surface tangent to these wavelets determines the contour of the advancing wave.
Thanks & Regards
Arun Kumar
Btech, IIT Delhi
Askiitians Faculty