Register to reply 
Young's double slit angles 
Share this thread: 
#1
Nov2312, 07:35 PM

P: 746

I am trying to prove that the two θ are equal from this picture
http://en.wikipedia.org/wiki/File:Double_slit.svg How do I go about proving this? 


#2
Nov2312, 07:50 PM

P: 296

This might help: The small triangle's theta refers to the top angle of the triangle, not the left one. Also, the right angle is right. By that I mean that the angle on the right side of the triangle is a 90 degree angle. This post was an excuse to say that the right angle is right.



#3
Nov2612, 12:21 AM

P: 746

Yes I was aware of which angles where which. I just used that picture since it was easily attainable. Any hints as to starting this



#4
Nov2612, 01:03 AM

Mentor
P: 11,782

Young's double slit angles
Suppose you have two lines A and B that have angle θ between them.
If you have line C parallel to A, and line D parallel to B, then C and D also have angle θ between them, right? Likewise, if you have line E perpendicular to A, and line F perpendicular to B, then E and F also have angle θ between them. 


Register to reply 
Related Discussions  
Young's double slit experiment with one slit covered with block of refractive index  Introductory Physics Homework  4  
Young's Double Slit Experiment  Slit Separation Calculation  Introductory Physics Homework  2  
Young's double slit expt  purpose of the first slit  General Physics  7  
Young's Double Slit with an Optical Flat over one slit  Advanced Physics Homework  2  
Young's double slit experiment (shallow slit and deep slit)  General Physics  4 