en.wikipedia.org website review
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SEO Keyword summary for en.wikipedia.org/wiki/diffraction
Keywords are extracted from the main content of your website and are the primary indicator of the words this page could rank for. By frequenty count we expect your focus keyword to be diffraction
Focus keyword
Short and long tail
Short Tail Keywords diffraction displaystyle light |
long Tail Keywords (2 words) mathbf r diffraction pattern laser beam diffraction grating main article |
long Tail Keywords (3 words) r -mathbf r theory of diffraction aperture emathrm inc mathrm aperture emathrm limits mathrm aperture mathbf hat r two point sources |
en.wikipedia.org On-Page SEO Scan
Descriptive Elements
The <head> element of a en.wikipedia.org/wiki/diffraction page is used to inform the browser and visitors of the page about the general meta information. The head section of the page is where we place the page title, the definition of the HTML version used, the language of in which the page is written. In the head section we can also include JavaScript and CSS (markup) files for the page.
Page title
Title length
diffraction wikipedia
Meta description
Meta description legth
Meta description SEO
No meta relevance in the description detected !
Content SEO
Number of Words
Spam detected?
Headings
Heading distribution
Heading normalisation
Heading SEO impact
Emphasis (bold and italic)
Emphasis SEO impact
Images
Number of images
Images dimensions
Image alt descriptions
Images SEO impact
wikipedia free encyclopedia displaystyle theta computergenerated intensity pattern formed screen diffraction from square aperture generation interference twoslit computational model optical laser analogous xray colors seen spider web are partially due according some analyses lambda frac dsintheta textmin dsin textminlambda nnlambda itheta operatorname sinc leftfrac dpi sin right textstyle xfrac dll dgg approx texti textiright dleftsin mpm irightmlambda kasin psi mathbf nabla delta rfrac partial rpsi eiomega eikr eikmathbf emathrm inc rpropto iint limits mathrm xyfrac dxdy xmathbf hat ymathbf reikmathbf cdot riint xyeikmathbf cos phi xyeiksin xsin ydxdy kxksin kyksin xyeikxxkyydxdy ngg sharp metallic edge soft gradient conductivity over image width mlambda icon edit wikidata wikimedia foundation powered mediawiki
Mobile SEO en.wikipedia.org/wiki/diffraction
Mobile rendering
Mobile optimizations
Responsive design detected (mobile css)
No flash detected !
Mobile improvement
Marketing / lead generation for en.wikipedia.org/wiki/diffraction
Social Media
Facebook shares | Facebook likes | ||
Facebook comments | Tweets | ||
Google +1 |
Conversion form
Search form
Analytics
Online presence
SERP Preview
SERP Title
SERP Link
SERP Description
Domain Level SEO
Domain name
16 characters long
Domain name SEO Impact
Path name
diffraction found in path !
frac found in path !
Structured data
Publisher Markup
Other Structured data
Website configuration
Correct processing of non-existing pages?
Favicon icon found?
Robots.txt found?
Sitemap found?
Navigation and internal links
Navigation
Url seperator
Human readable urls
Number of links
Link SEO Impact
statistics
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en.m.wikipedia.org |
en.wikipedia.org wikimedia foundation inc
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w view history
httpsenwikipediaorgwindexphptitlediffractionoldid1225183201
page information
printable version
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wiki read
refraction
variation
laser beam
aperture
shadow
propagating
francesco maria grimaldi
1660
wavefront
classical physics
huygensfresnel principle
wavelets
coherence physics
wavelength
interference
diffraction grating
electromagnetic waves
refractive index
sound wave
acoustic impedance
gravitational waves
water waves
xrays
radio waves
modern quantum mechanical
matter waves
semicircular
1803
da vinci
latin
1665
isaac newton
james gregory
1638
1675
thomas young
celebrated experiment
augustinjean fresnel
1816
1818
christiaan huygens
corpuscular theory of light
ripple tank
wave
principle of superposition of waves
point source
wave equation
phases
amplitudes
photon
wavefunction
probability distribution
doubleslit
g i taylor
1909
huygensfresnel principle
kirchhoff diffraction equation
fraunhofer diffraction
near field
fresnel diffraction
finite element
boundary element
spider web
hologram
atmospheric diffraction
corona
backscattering
arago spot
diffraction spikes
speckle pattern
deli meat
iridescent
jetties
diffractionlimited system
intensity profile
unnormalized sinc function
far field
geometrical optics
path length
convolution
bessel function
frequency domain
helmholtz equation
laplace operator
spherical coordinate system
del in cylindrical and spherical coordinates
greens function
surface integral
fourier transform
farfield diffraction pattern
fourier optics
gaussian beam
convex lens
selffocusing
lucky image
binary star
zeta botis
diffraction
fnumber
paraxial
angular resolution
entrance pupil
rayleigh criterion
microscope objectives
numerical aperture
laser pointer
babinets principle
radiation
halfplane
arnold sommerfeld
joseph b keller
geometrical theory of diffraction
uniform theory of diffraction
sines
neutrons
electron diffraction
de broglie wavelength
planck constant
momentum
bragg diffraction
braggs law
xrays
coherence length
atomic transition
freeelectron lasers
anglesensitive pixel
brocken spectre
cloud iridescence
coherent diffraction imaging
diffraction from slits
diffraction spike
diffraction vs interference
diffractive solar sail
diffractometer
dynamical theory of diffraction
fresnel imager
fresnel number
fresnel zone
point spread function
powder diffraction
quasioptics
reflection
schaeferbergmann diffraction
thinnedarray curse
xray diffraction
wayback machine
isbn
arxiv
bibcode
issn
pmid
s2cid
oxford university press
philosophical transactions of the royal society of london
trait
the slate group
international union of crystallography
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SEO Advice for en.wikipedia.org
In this section we provide pointers on how you can to optimize your web page so it can be found more easily by search engines and how to make it rank higher by optimizing the content of the page itself. For each of the individual criteria the maximum score is 100%. A score below 70% is considered to be indication that the page is not complying with general SEO standards and should be evaluated and/or fixed. Not every factor is weighted the same and some are not as important as others. Relatively unimportant factors like meta keywords are not included in the overall score.
Item | Factor | Pointers | |
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PageTitle | 100% | Far too many sites lack a page title. A page title is the first thing that shows in the search results so always use the title element. | |
Title relevance | 65% | A title should reflect the contents of a site. This site has a 50 % match | |
Title Length | 30% | Limit your title to anywhere between 40 and 70 characters. Your title was 24 characters long | |
Meta Description | 0% | A meta description is the second element that shows in the search results so always use the meta description. | |
Meta description length | 0% | The meta description should be between 145 and 160 characters. This meta description is 1 characters long. | |
Meta description relevance | 0% | Meta Description should reflect the contents of a site. This site has a 0 % match | |
Number of internal links | 30% | Linking to internal pages makes pages easier to find for search engines. Try to keep the number of links on your page roughly below 100. There are 278 internal links on this page. | |
Folder structure | 100% | We found a folder structure in the links on your page. A good folder structure makes a site easier to navigate. We found 3 level 1 folders and 6 folders above or in the first level of navigation. | |
Headings | 32% | Headers should reflect the contents of a site. This site has a 14 % match | |
Links | 10% | Link anchors should to some degree reflect the contents of a site. This site has a 5 % match | |
Image alt tags | 39% | Image alt tags should to some degree reflect the contents of a site. This site has a 14 % match | |
Bold and italic | 12% | Bold and italic tags should reflect the contents of a site to some degree. This site has a 4 % match | |
Html ratio | 40% | Try to keep the html / text ratio as low as possible. More html means longer loading times. Layout should be handled in a serpate css file | |
Image descriptions | 74% | 74.380165289256 % of all images have been described via the "alt" attribute. Describing images with relevant text may lead to better results in the search engines. | |
Page errors | 100% | Pages with no errors display significantly faster on most browsers. We detected 0 errors and warnings | |
WordCount | 20% | An ideal page contains between 400 and 600 words.This page contains 6673 words | |
Server response time | 100% | A fast server speeds up a website. This server responds 89.91% faster then average | |
Gzip compression | 30% | This site does not use Gzip compression. Pages may not display as fast as they could | |
Keywords in Domainname | 30% | There are no important keywords in your domain name | |
Keywords in domain path | 100% | There are important keywords in the domain path | |
Structured Data | 100% | Structured data makes it easier for search engines to index your website | |
Inline css | 0% | Do not use inline css declarations. Inline css will slow down the rendering of the website. We detected 188 inline style declarations ( <a style="color:green">) with a size of 6176 bytes | |
Excessive use of the same words | 100% | There is no indication that there are one or more keywords that are used excessively. | |
Frames or iframes | 100% | Perfect, detected not (i)frames on your webpagina | |
Flash | 100% | Perfect, we detected no flash objects on your page | |
Css | 30% | We detected too much (2) CSS files on your page. Css files block the loading of a webpage. | |
Javascript | 100% | Perfect, we did not detect too many blocking JavaScript files | |
Mobile Website | 100% | Perfect, we found a responsive design for mobile users | |
Most important heading | 100% | Perfect, we detected a correct use of the most important (h1) heading! | |
Normalized headings | 40% | We dit not font a normalized heading structure. A heading 2 (h2) for example should be followed by a heading of an equal level (h2), a child heading (h3) or even a aprent heading (h1). |
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en.wikipedia.org images and descriptions
108 images found at en.wikipedia.org Images can improve the user experience for a website by making a pag visually appealing Images can also add extra keyword relevance to a webpage by using alt tags. Images can also slow down a website. If the width and height for a picture is not specified for a browser know in advance how large the image is. A browser must first load the picture and see before it knows how much space should be on the page. Upon reservation In the meantime, the browser can do little but wait. When the height and width for the plate are given in the HTML code, a browser just continues to build for a page while the images load in the background.
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https://upload.wikimedia.org/wikipedia/commons/thumb/1/1f/square_diffraction.jpg/180px-square_diffraction.jpg height: 120 width: 120 description: computer-generated intensity pattern formed on a screen by diffraction from a square aperture |
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https://upload.wikimedia.org/wikipedia/commons/thumb/0/01/two-slit_diffraction.png/225px-two-slit_diffraction.png height: 120 width: 150 description: generation of an interference pattern from two-slit diffraction |
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https://upload.wikimedia.org/wikipedia/commons/thumb/a/a9/doubleslit.gif/182px-doubleslit.gif height: 120 width: 122 description: computational model of an interference pattern from two-slit diffraction |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/0f189d538c95274dd5297140e5ee78df90faf13e height: height attribute not set width: width attribute not set description: {\displaystyle \lambda /2} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/44957827facb1948efd78308454b7783346d0a76 height: height attribute not set width: width attribute not set description: {\displaystyle d\gg \lambda } |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/45fa623dea25165982c15695fcc75fe61d9bd404 height: height attribute not set width: width attribute not set description: {\displaystyle \theta \approx 0} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/1e5854942c75d71ac603f3275ce5b18866ed637f height: height attribute not set width: width attribute not set description: {\displaystyle i(\theta )=i_{0}\,\operatorname {sinc} ^{2}\left[{\frac {d\pi }{\lambda }}(\sin \theta \pm \sin \theta _{\text{i}})\right]} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/1c5bbdc15b292c06917367b94a551ab787fa9b1e height: height attribute not set width: width attribute not set description: {\displaystyle 2\pi /\lambda } |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/260ffe7da7c858cf114ad89a6c794944ea4e760f height: height attribute not set width: width attribute not set description: {\displaystyle j_{1}} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/45e5789e5d9c8f7c79744f43ecaaf8ba42a8553a height: height attribute not set width: width attribute not set description: {\displaystyle \psi } |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/eca0f46511c4c986c48b254073732c0bd98ae0c1 height: height attribute not set width: width attribute not set description: {\displaystyle \mathbf {r} } |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/d18f7118d163e259a431dee8d600dbc6ddd3cf8b height: height attribute not set width: width attribute not set description: {\displaystyle \nabla ^{2}\psi +k^{2}\psi =\delta (\mathbf {r} ),} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/c5c0d65c972b3ee05708309bd68570a928014ed6 height: height attribute not set width: width attribute not set description: {\displaystyle \delta (\mathbf {r} )} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/36ca8b068b12281e5b085f24858ee1a89289c158 height: height attribute not set width: width attribute not set description: {\displaystyle \nabla ^{2}\psi ={\frac {1}{r}}{\frac {\partial ^{2}}{\partial r^{2}}}(r\psi ).} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/7c4bab37784e0c6bedf7e592b763d6aa59266c92 height: height attribute not set width: width attribute not set description: {\displaystyle e^{-i\omega t}} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/32c2df56924f9a331f0318fc96abeb05a3f1e5ed height: height attribute not set width: width attribute not set description: {\displaystyle \psi (r)={\frac {e^{ikr}}{4\pi r}}.} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/1317b633a9366fab48e4b85ddec1cd1c0a8c31b3 height: height attribute not set width: width attribute not set description: {\displaystyle \mathbf {r} '} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/298e884d6c928adb6621db677d3a7f66d398ddea height: height attribute not set width: width attribute not set description: {\displaystyle \psi (\mathbf {r} |\mathbf {r} ')={\frac {e^{ik|\mathbf {r} -\mathbf {r} '|}}{4\pi |\mathbf {r} -\mathbf {r} '|}}.} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/8c7adb32928a3ac9ed31b4e64e57cf42abb6b990 height: height attribute not set width: width attribute not set description: {\displaystyle e_{\mathrm {inc} }(x,y)} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/0df80f26bc76c6149fc3ecd175550ed3ab624cbf height: height attribute not set width: width attribute not set description: {\displaystyle \psi (r)\propto \iint \limits _{\mathrm {aperture} }\!\!e_{\mathrm {inc} }(x',y')~{\frac {e^{ik|\mathbf {r} -\mathbf {r} '|}}{4\pi |\mathbf {r} -\mathbf {r} '|}}\,dx'\,dy',} |
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https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/fraunhofer.svg/310px-fraunhofer.svg.png height: 178 width: 310 description: no alt description found |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/b1352fb48fd3849697a46368c48f14b21a334539 height: height attribute not set width: width attribute not set description: {\displaystyle \mathbf {r} '=x'\mathbf {\hat {x}} +y'\mathbf {\hat {y}} .} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/27ff2e67ecbe945e5f0c2cb7a8d2cdeb34c12479 height: height attribute not set width: width attribute not set description: {\displaystyle \psi (\mathbf {r} |\mathbf {r} ')={\frac {e^{ik|\mathbf {r} -\mathbf {r} '|}}{4\pi |\mathbf {r} -\mathbf {r} '|}},} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/3109378c66517e8f969b7d4039a8ebcfc88af8fd height: height attribute not set width: width attribute not set description: {\displaystyle \psi (\mathbf {r} |\mathbf {r} ')={\frac {e^{ikr}}{4\pi r}}e^{-ik(\mathbf {r} '\cdot \mathbf {\hat {r}} )}} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/9bc391b1b91d6ce96e1074c2259f131a95f1d2ba height: height attribute not set width: width attribute not set description: {\displaystyle \psi (r)\propto {\frac {e^{ikr}}{4\pi r}}\iint \limits _{\mathrm {aperture} }\!\!e_{\mathrm {inc} }(x',y')e^{-ik(\mathbf {r} '\cdot \mathbf {\hat {r}} )}\,dx'\,dy'.} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/5920361f62c5aa68d1326b4810ba37f646bab43f height: height attribute not set width: width attribute not set description: {\displaystyle \mathbf {r} '=x'\mathbf {\hat {x}} +y'\mathbf {\hat {y}} } |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/67a9f65ffd57acf718f256230af16e176880615a height: height attribute not set width: width attribute not set description: {\displaystyle \mathbf {\hat {r}} =\sin \theta \cos \phi \mathbf {\hat {x}} +\sin \theta ~\sin \phi ~\mathbf {\hat {y}} +\cos \theta \mathbf {\hat {z}} ,} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/6fc6a943d922a20506dff10ff61de81a98bb6ede height: height attribute not set width: width attribute not set description: {\displaystyle \psi (r)\propto {\frac {e^{ikr}}{4\pi r}}\iint \limits _{\mathrm {aperture} }\!\!e_{\mathrm {inc} }(x',y')e^{-ik\sin \theta (\cos \phi x'+\sin \phi y')}\,dx'\,dy'.} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/45022c7b465259acb6ee917117e7d42a67cfdcb6 height: height attribute not set width: width attribute not set description: {\displaystyle k_{x}=k\sin \theta \cos \phi } |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/f7422bd5e8d8b918f2a8708d5e140a314f6737b6 height: height attribute not set width: width attribute not set description: {\displaystyle k_{y}=k\sin \theta \sin \phi \,,} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/ddaca41027387a5ea0a9022c87e9d9763477ced0 height: height attribute not set width: width attribute not set description: {\displaystyle \psi (r)\propto {\frac {e^{ikr}}{4\pi r}}\iint \limits _{\mathrm {aperture} }\!\!e_{\mathrm {inc} }(x',y')e^{-i(k_{x}x'+k_{y}y')}\,dx'\,dy',} |
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https://upload.wikimedia.org/wikipedia/commons/b/b6/zboo_lucky_image_1pc.png height: 183 width: 224 description: no alt description found |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/d0bf219ac8262d284d284e388c0bc8a1482e548a height: height attribute not set width: width attribute not set description: {\displaystyle \delta x=1.22\lambda n,} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/f5e3890c981ae85503089652feb48b191b57aae3 height: height attribute not set width: width attribute not set description: {\displaystyle n} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/132e57acb643253e7810ee9702d9581f159a1c61 height: height attribute not set width: width attribute not set description: {\displaystyle f} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/f34a0c600395e5d4345287e21fb26efd386990e6 height: height attribute not set width: width attribute not set description: {\displaystyle d} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/b7067e3506c2342958dfbe0058ae7563915b852c height: height attribute not set width: width attribute not set description: {\displaystyle n\gg 1} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/0b38e5c3d13d771819c80e99197ad9e7829a3422 height: height attribute not set width: width attribute not set description: {\displaystyle \theta \approx \sin \theta =1.22{\frac {\lambda }{d}},} |
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https://upload.wikimedia.org/wikipedia/commons/4/4b/diffraction_sharp_edge.gif height: 238 width: 168 description: diffraction on a sharp metallic edge |
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https://upload.wikimedia.org/wikipedia/commons/5/53/diffraction_softest_edge.gif height: 238 width: 168 description: diffraction on a soft aperture, with a gradient of conductivity over the image width |
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https://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/diffraction_on_elliptic_aperture_with_fft.png/220px-diffraction_on_elliptic_aperture_with_fft.png height: 328 width: 220 description: no alt description found |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/57f18cc0bc210e3e91b4a9a3f4e868717978ec6c height: height attribute not set width: width attribute not set description: {\displaystyle \lambda ={\frac {h}{p}}\,,} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/b26be3e694314bc90c3215047e4a2010c6ee184a height: height attribute not set width: width attribute not set description: {\displaystyle h} |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/81eac1e205430d1f40810df36a0edffdc367af36 height: height attribute not set width: width attribute not set description: {\displaystyle p} |
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https://upload.wikimedia.org/wikipedia/commons/thumb/7/7d/x-ray_diffraction_pattern_3clpro.jpg/220px-x-ray_diffraction_pattern_3clpro.jpg height: 220 width: 220 description: no alt description found |
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https://wikimedia.org/api/rest_v1/media/math/render/svg/c918a1965c82cb3b240eccc22d814d1c2f5d0175 height: height attribute not set width: width attribute not set description: {\displaystyle m\lambda =2d\sin \theta ,} |
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https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/stylised_atom_with_three_bohr_model_orbits_and_stylised_nucleus.svg/17px-stylised_atom_with_three_bohr_model_orbits_and_stylised_nucleus.svg.png height: 19 width: 17 description: icon |
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https://login.wikimedia.org/wiki/special:centralautologin/start?type=1x1 height: 1 width: 1 description: no alt description found |
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