NTNUJAVA Virtual Physics LaboratoryEnjoy the fun of physics with simulations! Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/
April 23, 2021, 08:50:06 am

To live close to great minds is the best kind of education. ..."John Buchan (1875~1940 Scotticsh historian, Governor General of Canada)"

 Pages: [1]   Go Down
 Author Topic: Interference of two point sources in 3D  (Read 8448 times) 0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
Fu-Kwun Hwang
Hero Member

Offline

Posts: 3086

 « Embed this message on: January 11, 2011, 10:30:21 am »

The following simulation show two point source located at P1=(x1,y1,z) and P2=(x2,y1,z)

It only show waves moving toward a common point P=(x,y,z), so that the interference can be shown at (x,y,z)
$y1(t)=h*sin(k*r1-w*t)$ where r1 is the distance of bwtween P1 and P.
and
$y2(t)=h*sin(k*r2-w*t)$ where r2 is the distance of bwtween P2 and P.

You can change the distance between source with slider for d, location of observed point with slider for x,wavelength with slider for lambda.

Two blue arrows represent phases for those two wave at P. i.e. represent (k*r1-w*t and k*r2-w*t).

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
• Please feel free to post your ideas about how to use the simulation for better teaching and learning.
• Post questions to be asked to help students to think, to explore.
• Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!
 optics_interference3D2S.jpg (23.02 KB, 543x554 - viewed 591 times.) Logged
lookang
Hero Member

Offline

Posts: 1796

http://weelookang.blogspot.com

 « Embed this message Reply #1 on: January 11, 2011, 01:21:36 pm »

This is a simple simulation that is great for visualizing only the point of interest P, without looking at other parts of the interference.
Like:
simplicity
3D

I have remix something here http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2067.0 as well
Ejs Open Source Ripple Tank Interference Model java applet http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2067.0
my 3D effect can also be observed but it is too complex, under surface visualization.
 rippletank3dsurfaeplot.png (38.66 KB, 622x283 - viewed 555 times.) « Last Edit: January 11, 2011, 01:26:52 pm by lookang » Logged
 Pages: [1]   Go Up
To live close to great minds is the best kind of education. ..."John Buchan (1875~1940 Scotticsh historian, Governor General of Canada)"

 Related Topics Subject Started by Replies Views Last post Interference between two waves (point source) Wave Fu-Kwun Hwang 10 190411 July 21, 2015, 01:15:17 pm by Walterting Demo for wave (two point sources in ripple tank) Physlet builder (Create your own simulation) Fu-Kwun Hwang 3 14862 October 10, 2015, 10:31:57 pm by felezyab2 Physlet ripple applet (add point sources and watch interference wave pattern) Physlet builder (Create your own simulation) Fu-Kwun Hwang 0 9775 June 15, 2009, 03:22:02 pm by Fu-Kwun Hwang Motion respect to apparent point Request for physics Simulations tesla2 5 6467 April 17, 2015, 03:32:14 am by Femida
Page created in 0.205 seconds with 22 queries.since 2011/06/15