Tagged Questions
0
votes
0answers
14 views
Minimum thickness of bubble ensuring max reflectance
A soap bubble has index of refraction of 1.33. What minimum thickness of this bubble will ensure max reflectance of normally incident 530 nm light?
Ans is 99.6, but how do I get that?
I am ...
0
votes
1answer
46 views
EM Waves Energy Loss
Where does the energy go when two photons interfere destructively at a point on a screen in Young's double slit experiment ?
0
votes
0answers
30 views
The interference of waves and factors that affect cancellation?
If you had two repeated disturbances on the surface of a water, I know interference will occur. However, if I move the two sources of disturbances closer together, why would the 'gaps' between each ...
1
vote
0answers
216 views
How to calculate the intensity of the interference of two waves in a given point?
There are two different point sources which produce spherical waves with the same power, amplitude, ω, wavenumber and phase.
I can calculate the intensity of each wave in a point:
$$
I_1 = P / (4 ...
-3
votes
1answer
150 views
how to simulate wave interference [closed]
I need to simulate wave interference with reflection from surfaces.
What formulas I need to use?
What differential equation I need to solve? - Could someone help me out?
2
votes
2answers
188 views
A question on intereference experiment with water waves as given in the Feynman Lectures on Physics
I have a question related to the interference (thought)experiment with water waves given in the book Feynman Lectures on Physics Vol.3. When only one hole (hole 1) is open the measured wave intensity ...
1
vote
1answer
293 views
How Light or Water Intensity is equal to square modulus of wave function of Light or Water Waves $I=|\psi|^2 \,$?
I've seen the Wave Function as a psi $\Psi$ $\psi$.
And always heard that the wave function is the Complex Number as Imaginary and real number.
But I've never seen it
I've never seen components of ...
24
votes
10answers
3k views
What happens to the energy when waves perfectly cancel each other?
What happens to the energy when waves perfectly cancel each other (destructive interference)? It appears that the energy "disappear" but the law of conservation of energy states that it can't be ...
1
vote
1answer
308 views
Why do I hear beats through headphones only at low frequencies?
I was recently playing with this Wolfram Demonstrations applet, which demonstrates beats.
At first I thought the app didn't work because I couldn't hear any beats. Then I realized that the applet ...
0
votes
2answers
437 views
Wave diffraction explanation
I'm trying to understand wave diffraction and I found this wikipedia article. It's in Czech so I'll explain a bit. I'm interested in the 4 images I couldn't find on english wikipedia. The first one is ...
2
votes
3answers
484 views
Recently publicized experiment on destructive interference between two laser beams
Recently I've had several non-physicist friends ask me, independently of each other, about an experiment where two collinear laser beams destructively interfere along a certain length. Everybody wants ...
