Double slit Definition and 802 Threads

I've been working on my Physics work when I scanned across a section and noticed something that bothered me. The equation: d sin (thetha) = m (wavelength). d is the separation and m is an interger. However, it said to find the bright fringes of a double slit (Young's Double Slit...

I have a question that's been buggin me as I've built an interest in what kind of part does consciousness play in quantum mechanics. My question is if anyone has conducted the Double slit experiment, in a way that the measuring device(s) at the slits (that determine which slit it goes...

Hello all, I have a problem that requires some knowledge about Young's double slit experiment. The question is as follows: Imagine performing Young's experiment with one slit wider than the other so that the intensity passing the wider slit is four times as great as that passing the narrower...

Hello Could someone please help me with this question,,I have no idea how to work it out and have looked through my textbook/notes and arrrr still can't do it... A beam of photons encounters a double slit that has a separation distance d = 34.0 μm. Note: the diagram is not drawn to...

I'm only a first year psychology student, so I appologize for my lack of understanding. But looking at the double slit expirament described in Feynmans book QED, for example, where two slits separate a photon emitter and detector, where the separation distance of the slits determines how many...

As I understand this, if the double slit experiment is performed in a cloud chamber the interference pattern of the electrons disappear and tracks are seen within the vapour. Does the interference pattern disappear because by the process of observation (permitted by the cloud chamber) we have...

My question deals with Young's double slit experiment. This figure is a graphical representation of Young’s double slit experiment in which laser light passing through a pair of closely spaced slits results in a 2-source interference pattern. The laser light, incident from the top, is...

I have an advanced amateur's(if there is such a thing) grasp of the concepts of quantum physics. However, the typical usage of the 'double slit experiment' to explain an observation of the differences between classical and quantum behaviours confuses me. The specific case, of course, is when...

what are the practical and theoretical no. of bright fringes that can be formed in the double slit experiment?

Hi... Could anyone please tell me that why does the intensity of the interference pattern get diminished towards the ends of the screen ? And can anyone also tell me what is the theoretical number of maxima that can be obtained in YDS experiment for a given wavelength, and slit , screen...

Hi, Could somebody, please, give a reference for the exact derivation of the single-photon double-slit experiment? I mean similar then the well-known solution for the particle-in-box, or for the Hydrogen-atom. That is, starting from the Schrödinger-equation, taking boundary conditions...

Hi! :smile: I’m new here and enjoying it very much. In the double slit experiment; what causes the fired electron to change from being in a wave configuration, back to a particle configuration when it strikes the target? Mizpah

I stumbled upon this, basically what i want to know is. Does a single electron shot through two slots produce an interference pattern? When you observe which slot the electron goes through does the act of observing prevent it from producing an interference pattern?

Light of wavelength 600nm passes through two slits separated by .2mm and is observed on a screen 1.0m behind the slits. The location of the central max is marked on the screen and labeled y_0 A) at what distance are the m = 1 bright fringes. I got this part. the answer is .003m or 3mm...

Basically I'm looking to find a mathematical treatment of the single electron double slit interference phenomenom,, presumably someone has already done the maths for it but I can't seem to find it,, can you point me to an article, paper or book which has it? [preferably online] Thanks a lot =)

Question: Calculate the longest wavelength of light falling on double slits separated by 1200nm for which there is a first-order maximum. In what part of the spectrum is the light? Answer in Book: 12nm my problem: the formula i thought you would use is...

here the problem: In the Young Double Slit experiment, alternatingbands of bright and dark regions are produced on the screen. At the dark band shown in the picture below, on slit is a closer than the other slit: In other words, D1 is less than D2, Find D2-D1, Assuming that the light has a...

hello, i am doing a work sheet on the title of this thread and i do not have the answer sheet for the questions so can some one please go through my answers and see if i am correct Young used a monochromatic light source a) wat does this mean? my ans: light of a single wavelength b)...

A vertical screen has two narrow slits separated by distance d. A second screen, parallel to the first, is a distance L away (L>>d) and displays the first minimum of the two slit interference pattern a height h above the horizontal line drawn from the center of the slits to the second...

From what I know of the double slit experiment you shine a light at two different slits and half of the photons go through one, and the other half go through the other (or a ratio similar to that), and i am pretty sure the second part of the experiment is to shoot one photon at the two slits and...

For the Young's Double slit Experiment, I'm just wondering when it comes to finding the distance between the adjacent fringes (shown on the screen), why can't we just measure directly the distance between the adjacent fringes instead of having to measure the distance between 5 fringes and...

I have read that if you set up a double slit experiment and let photons go through one at a time they build up an interference pattern. I have also read that this interference pattern is similar to having a pool with two wave generators on one side of the double slit and looking at the...

How will the Fringe system in a Young's double slit experiment affected if, 1] a pair of polarising sheets P1 and P2, one before each of the slits S1 and S2, such that their transmission directions are parallel. 2] what will be the effect if the transmission lines are mutually orthogonal...

Double slit in time experiment. http://faculty.physics.tamu.edu/ggp/#doubleSlit http://physicsweb.org/articles/news/9/3/1/1?rss=2.03Cbr20/E This surely is experimental evidence that that matter/energy is not just quantised over spatial dimensions (as shown by the classical double slit...

I have seen this experiment done with a laser, but I want to know how hard it is to do the version of the experiment where only a single particle is fired toward the slits at a time. Is it possible for me to carry out such an experiment, or does such a thing require lots of cash? Also, from...

Consider the double-slit arrangement shown in the figure below, where the separation d is 0.305 mm and the distance L is 1.10 m. A sheet of transparent plastic (n = 1.50) 0.0491 mm thick (about the thickness of a piece of paper) is placed over the upper slit. As a result, the central maximum of...

Hey guys, I was reading, as you do, a bit of physics on the classic double slit experiment - this was a simple example that was in the article, however it got me thinking. I remember reading about some physicsts performing the experiment with electrons. now I also think I remember that...

ok so I read this book recently, timeline. In it they explain an experiment I've heard about a lot in physics. However, they gave a very strange look at it that I can't figure out. Basically, its the double slit experiment except instead of using light waves / many photons, you use particles...

Two lasers are shining on a double slit, with slit separation d. Laser one has a wavelength of d/20, while laser two has a wavelength of d/15 . The lasers produce separate interference patterns on a screen a large distance L away from the slits. Which laser has its first maximum closer to the...

I just posted this as a reply, but i figured Id open a new thread for discussion. correct me if I am wrong here. according to the double slit experiment, a photon takes every possible path to it's destination, causing it to interfere with itself, right? My first question is, does each...

Hello all, I saw this setup for a quantum eraser: http://grad.physics.sunysb.edu/~amarch/PHY5656.gif In this setup, we get no interference: http://grad.physics.sunysb.edu/~amarch/PHY5658.gif Then, by inserting a polarizer we can erase the which way information: Setup with...

Recently Paulus and his team had reported observation of interference in time. http://physicsweb.org/articles/news/9/3/1/1?rss=2.0 http://arxiv.org/pdf/quant-ph/0503165 It is a marvellous experiment. But, it appears the work is not fully explained and the experimental results need careful...

I once read about a modified double slit experiment where the distance between one slit and the source was different to distance between the other slit and the source. It gave the usual interference result, and showed the common feature of other double slit experiments, equal distances to both...

Anyone know where to find some well documented Double slit experiment results? Thorough and complete detailed information on all parts: Wavelength used, width of slits, separation of slits, Distance from slits to detection screen or film. Flat screen or detail on a curve in detection...

A monochromated beam of neutrons (speed 0.40 m/s) is directed through a double slit with 1.0 mm separation. An array of detectors is placed 10m from the slit. a)what is the de Broglie wavelength of the neutrons? b)how far off-axis is the first zero-intensity point on the detector array...

Double slit experiment IN TIME ! The famous double slit experiment performed in another way ... The slits are not in space but in time : two positive peaks and one negative peak of an electric field contained in a very short laser pulse...

Interesting take on Young's experiment... http://physicsweb.org/articles/news/9/3/1/1?rss=2.0 wonder what that does to Mr. Deutsch's Multiverse?

Hello, I wondered how one treats the double slit experiment quantum mechanically, that is, using probability amplitudes,wave functions,etc...to calculate the intensity on the screen. If anyone knows a link or a paper or a book where I can find it, that'd be nice. -Edgardo

I just have some narrow questions and got a headache searching through the other threads to see if they have been answered. I just want to understand more specifically what is actually going on with the detectors at the slits. 99% of the explanations and descriptions I read about just talk...

single slit problem (simple) A single slit diffracts laser light of wavelength 610 nm onto a screen 3.25 m away. The distance between the two first-order maxima on either side of the central peak is 3.65 mm. How wide is the slit (in mm)? I figured the formula \lambda m = d sin(\theta) would...

Hi, just need a quick confirmation I am right with something! :) If we are considering electrons (for example) going through the double slit experiment one at a time would it be correct to define the wavefunction for the electron as follows? \Ket{\Psi} = C_1\Ket{\phi_1} + C_2\Ket{\phi_2}...

"In Young's double slit experiment, assuming the distance between the slits is 0.07mm and the wavelength of light used is 600 nm, when the screen is 70 cm away, what kind of interference is there." I'm not sure what I'm being asked to determine here. Plugging in the figures into the...

I've been puzzling over the two-slit experiment. There's an alternate setup where you use lasers and prisms. [A laser beam is split with a half-silvered mirror/prism. Photons take one path or the other and hit one of two detectors. We arbitrarily insert a converging mirror/prism near the end...

What would be the best set up to repeat Young's double slit experiment with a diode laser?

there's something that is annoying me, because I can't find a explanation It's about the classical double slit experiment, where you have two screens, and one of them has 2 narrow slits then you launch a photon against the screens, and if there are no detectors in the slits, you observe an...

I suppose someone has thought of this but is the supposed "interference" of light particles in the double slit experiment actually only the apparent interference of light particles and actually an interference of paths open for the light particles to travel? I. e. it is something else creating...

I have decided on a physics experiment for high school, but am not sure how to go about doing it, and what materials to use :confused: . Its called the Single photon Double Slit Experiment, similar to the one done by GI Taylor, years ago. the basic concept is that a single photon is...

Double slit arrangment?? Can anybody help me with this problem? A thin flake of mica(n=1.58) is used to cover one slit of a double slit interference arrangment.The central point on the viewing screen is now covered by what had been the 5th bright fringe before the mica was used. Find the...

This experiment which is a variation of the double slit experiment , has actually been conducted. We have (a) the source of electrons, (b) screen 1 ( with the double slit ) and finally (c) screen 2 , where the particles are registered. Near the slits in screen 1 and on the far side from the...

In a double-slit experiment it is found that blue light of wavelength 478 nm gives a second-order maximum at a certain location on the screen. What wavelength of visible light would have a minimum at the same location? ----- I have no clue how to approach this problem but looking in the...