Why the water waves bend in diffraction?

  • Thread starter Aladin
  • Start date
  • #1
77
0
Waves bend when they pass throungh a narrow gap.It is the definition of diffraction.
what is the reason that when the water waves pass through a narrow gap in ripple tank the wavefronts become circular?
what is the reason that when the water waves pass through a wide slit in ripple tank the wavefronts remain straight?
please explain.
 

Attachments

  • 0013n082.jpg
    0013n082.jpg
    12.7 KB · Views: 334

Answers and Replies

  • #2
This can be explained using "[URL [Broken] Principle[/URL], where the wavefront at any point is considered to generate a circular wave at every point to advance itself. I didn't say that very well, but the Link may explain better. Be sure to check out the java applets link at the bottom of the Wikipedia page.

I like to think of it in this way. Whenever a wave encounters a "disturbance", it will generate a circular "ripple" centered at that disturbance. This sort of explains reflection, refraction and diffusion.
 
Last edited by a moderator:

Related Threads on Why the water waves bend in diffraction?

Replies
6
Views
938
Replies
6
Views
6K
Replies
4
Views
2K
Replies
8
Views
4K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
6
Views
3K
  • Last Post
Replies
2
Views
813
  • Last Post
Replies
1
Views
2K
Replies
1
Views
1K
Top