From d173a4ce2da2fddb0fa3df6809beab8864a59a18 Mon Sep 17 00:00:00 2001 From: eggy Date: Wed, 16 Dec 2020 14:11:38 -0500 Subject: [PATCH] phys: inter to two inters --- docs/sph3u7.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/sph3u7.md b/docs/sph3u7.md index fe86fee..42a8028 100644 --- a/docs/sph3u7.md +++ b/docs/sph3u7.md @@ -695,7 +695,7 @@ As a wavefront passes an aperture, there are fewer points beside it and the wave For observable diffraction, the wavelength must be greater than or equal to the width of the aperture. -### Interference +### Two-point interference When two points create waves, their wavefronts spread out in all directions. If waves are emanated from two points at the same speed and frequency, they form **nodal** and **anti-nodal** lines.