Datoteka:Light_dispersion_conceptual.gif
From Wikipedia, the free encyclopedia
Light_dispersion_conceptual.gif (700 × 435 piksela, veličina datoteke/fajla: 119 kB, MIME tip: image/gif, stalno iznova, 8 sličica, 0,8 s)
Ova datoteka je s projekta Vikimedijina ostava i može se upotrebljavati i na drugim projektima. Ispod su prikazane informacije s njene opisne stranice.
Opis izmjene
OpisLight dispersion conceptual.gif |
English: This is a conceptual animation of the dispersion of light as it travels through a triangular prism.
In vacuum (shown in black), light of any wavelength will travel at a fixed speed, c. But light slows down in a different medium (such as glass or water), and light of shorter wavelengths (like indigo) will tend to travel slower than light of longer wavelengths (like red) This model attempts to convey this fact and its consequences by idealizing light as small particles travelling in space. Of course, light is not made of small particles but of electromagnetic waves, so keep in mind this conceptual aspect of the image to avoid any misconceptions about the nature of light itself. For our purposes, however, the model will suffice. White light, represented here by white dots, is actually made out of light of several frequencies (colors) travelling together. These basic frequencies of visible light are part of what we call visible spectrum, and it is only tiny part of the entire electromagnetic spectrum. As white light enters a medium (in this case, the prism), each of its composing wavelengths will travel at a different speed in the new medium, and this change in speed is what bends the path in which light is travelling. This is the phenomenon we call refraction. The ratio between the speed of light in vacuum and the speed of light in a medium is what we call index of refraction, and this value is specific for a given wavelength and medium. Since light of different wavelengths will change direction by a different amount, we will experience a division of white light in its composing spectral colors, represented here by colored dots. This is what we call dispersion. Once the basic frequencies are separated in this animation, we can easily see the difference on their speeds. Red, with a long wavelength, passes through almost without any change, whereas indigo (with short wavelength) is left behind by all the other colors. However, this difference in speed does not hold in vacuum, and this can be seen on how all light exiting the prism will once again travel at the constant speed of light in vacuum. This is all just an easy way of seeing it, so it is important to stress once again the fact that this model is not entirely accurate, as light is not made of little round particles, and white light can't exist on its own (as can be misunderstood from the big white dots).Deutsch: Animation der Lichtbrechung in einem Prisma. |
Datum | |
Izvor | Vlastito djelo |
Autor | Lucas Vieira |
Licenciranje
Public domainPublic domainfalsefalse |
![]() |
Ja, vlasnik autorskog prava ovog djela, objavljujem ovaj rad u javno vlasništvo. Ovo se primjenjuje u cijelom svijetu. U nekim državama ovo zakonski nije moguće; u tom slučaju: Ja dopuštam svima pravo korištenja ovog rada u bilo koju svrhu, bez ikakvih uslova, osim ako su takvi uslovi zakonski neophodni. |
Opisi
Predmeti pokazani na ovoj datoteci
prikazuje
Ovo svojstvo ima vrijednost, ali nije poznato
licenca Bosanski
januar 2007
izvor datoteke Srpski (transliteracija)
sopstveno delo Srpski (transliteracija)
Historija datoteke
Kliknite na datum/vrijeme da biste vidjeli tadašnju verziju datoteke.
Datum/vrijeme | Minijatura | Dimenzije | Korisnik | Komentar | |
---|---|---|---|---|---|
aktualna | 19:28, 24 februar 2007 | ![]() | 700 × 435 (119 kB) | LucasVB | Changing "white photons" back to the same size as the colored ones. |
19:32, 1 februar 2007 | ![]() | 750 × 498 (117 kB) | Leyo | Auf eine alte Version zurückgesetzt | |
13:39, 23 januar 2007 | ![]() | 750 × 498 (117 kB) | LucasVB | Larger "white" photons may give a better idea of "division of white light". Also, removed magenta color since it is not a spectral color (I don't know why I didn't do this earlier) | |
18:54, 21 januar 2007 | ![]() | 700 × 435 (121 kB) | LucasVB | Once again, larger (700px), but now a constant stream of "photons", per request. The file is actually smaller now because we just need 8 frames. | |
07:01, 21 januar 2007 | ![]() | 450 × 296 (379 kB) | LucasVB | Larger size. | |
22:52, 20 januar 2007 | ![]() | 250 × 167 (265 kB) | LucasVB | Conceptual animation of w:dispersion of light. |
Upotreba datoteke
Nema stranica koje koriste ovu datoteku.
Globalna upotreba datoteke
Ovu datoteku upotrebljavaju i sljedeći projekti:
- Upotreba na projektu ar.wikipedia.org
- الكندي
- ضوء
- انكسار (فيزياء)
- غاليليو غاليلي
- تجربة ميكلسون ومورلي
- ازدواجية موجة جسيم
- بوابة:الفيزياء
- ضوء متباطيء
- مقراب
- فوتون
- ليزر
- طيف كهرومغناطيسي
- تجربة الشق المزدوج
- أثر بوكل
- ظاهرة كير
- لون
- موجة كهرطيسية
- إسحاق نيوتن
- قوس قزح
- تدوير ضوئي
- مقياس استقطاب
- منشور نيكول
- علاقة كراميرس-كرونيج
- مقدمة موجة
- دليل موجة
- طول الموجة
- نظارة
- بولارويد (مرشح استقطابي)
- تشتت (بصريات)
- جيمس ماكسويل
- تأثير دوبلر
- ألبرت ميكلسون
- سرعة الضوء
- رينيه ديكارت
- نظارة طبية
- عدسات لاصقة
- ليف بصري
- المناظر
- بصريات
- هنري بيكريل
- بوابة:الفيزياء/بوابات شقيقة
- أثر كهرضوئي
- تخزين بيانات بصرية ثلاثية الأبعاد
- عدسة (بصريات)
- سراب
- قانون بير-لامبرت
- مطيافية
- آندرز أنغستروم
- قنديلة
- لويس دي بروي