No links please
Q. State Huygen's principle. In the light of Huygen's principle, explain the refraction of light.
Dear student
Refraction of light
![](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5aa9ed3a53db7.png)
![](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5aa9ed4e0ad67.png)
![](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5aa9ed58db4cb.png)
regards
There are two principles of Huygen:
- Every Point on the given wave front (called theprimary wave front) acts as a source of new disturbances,calledsecondary wavelets,which travel in all directions with the velocity of light.
- A surface touching these wavelets tangentially in the forward direction at any instant gives the new wave front at that instant.This is called theSecondary wave front.
Refraction of light
![](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5aa9ed3a53db7.png)
![](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5aa9ed4e0ad67.png)
![](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5aa9ed58db4cb.png)
regards