Muenzaniso weMibvunzo yeKushandisa Mafungu eChiedza
Mafungu echiedza chiitiko chechisikigo chine mashandisirwo akawanda muhupenyu hwezuva nezuva nesainzi. Kubva pakuona kusvika pahunyanzvi hwemazuva ano hwekutaurirana, kunzwisisa mafungu echiedza kunoita basa rakakosha mukusimudzira tekinoroji nesainzi. Muchinyorwa chino, tichakurukura mienzaniso yakati wandei yekushandiswa kwemafungu echiedza uye kutsanangura pfungwa huru dzine chekuita nenyaya iyi.
Pendauluan
Chiedza imhando yesimba rinoonekwa neziso remunhu. Semafungu emagetsi, chiedza chine hunyanzvi hwakadai sewavelength, frequency, uye speed. Wavelength yechiedza chinoonekwa iri pakati pe400–700 nanometers (nm). Nekudzidza hunyanzvi uhwu, tinogona kunzwisisa mashandisirwo akasiyana-siyana anosanganisira mafungu echiedza, akadai semu tekinoroji ye optical, astronomy, nezvimwewo.
Pfungwa Yekutanga yeMafungu eChiedza
Usati wapa mienzaniso, zvingava zvakanaka kudzidza dzimwe pfungwa huru dzine chekuita nemafungu echiedza:
1. Kumhanya kweChiedza: Muchinhu chisina chinhu, chiedza chinofamba nekumhanya kwakafanana kwemamita 299.792.458 pasekondi (kana kutenderedzwa kusvika 3 x 10^8 m/s).
2. Kureba kweWave uye Frequency: Hukama huripo pakati pewavevelth (λ) nefrequency (f) yechiedza hunoratidzwa ne equation:
\[
c = \lambda \cdot f
\]
apo \( c \) ndiyo kumhanya kwechiedza. Kubva muequation iyi, tinogona kuona chimwe kana tichiziva chimwe.
3. Kubviswa kwechiedza: Kana chiedza chikapfuura nepamuganhu uri pakati penzvimbo mbiri dzakasiyana, kumhanya kwacho kunochinja, uye izvi zvinokonzera kudonha kwechiedza. Mutemo waSnell ndiwo hwaro hwechiitiko ichi:
\[
n_1 \cdot \sin(\theta_1) = n_2 \cdot \sin(\theta_2)
\]
apo \( n_1 \) uye \( n_2 \) zviri zviratidzo zvekurefractive zvepakati pekutanga nepechipiri, uye \( \theta_1 \) uye \( \theta_2 \) zviri kona yezviitiko uye kona yerefraction.
4. Kupindirana: Kana mafungu maviri kana anopfuura echiedza akasangana, anogona kusimbisana kana kushayisana simba. Izvi zvinonzi kupindirana.
5. Polarization: Maitiro ekushandura kwemafungu echiedza kuti adedere mudenderedzwa rimwe chete.
Mibvunzo yemuenzaniso nekukurukurirana
Muchikamu chino, tichaongorora mimwe mienzaniso yezvinetso nezvekushandiswa kwemafungu echiedza.
Mubvunzo 1: Kupindirana kwechiedza
Mipata miviri yakamanikana iri 0,5 mm yakaparadzana inovhenekerwa nechiedza chine urefu hwemarefu hwe600 nm. Chidzitiro chinotaridzwa patani yekupindira chiri mamita maviri kubva pamipata miviri. Verenga daro riri pakati pebhandi rekutanga rakajeka nepakati paro.
Kukurukurirana:
Maitiro ekupindira anokonzerwa nekutsemuka kaviri anogona kuverengerwa uchishandisa fomura:
\[
y = \dfrac{m \cdot \lambda \cdot L}{d}
\]
Kune bhendi rekutanga rakajeka, \( m = 1 \):
\[
y = \dfrac{1 \cdot 600 \times 10^{-9} \cdot 2}{0.5 \times 10^{-3}}
\]
\[
y = \dfrac{1200 \kawa 10^{-9}}{0.5 \kawa 10^{-3}}
\]
\[
y = 2.4 \kawa 10^{-3} \mashoko{mita} \]
\]
Saka, daro riri pakati pebhendi rekutanga rakajeka nepakati i2.4 mm.
Mubvunzo 2: Kupatsanurwa kwechiedza
Mwaranzi wechiedza une urefu hwemafungu e550 nm unobva mumhepo uchipinda mumvura nekona ye30°. Sarudza kona ye refraction mumvura. Refractive index yemvura i1,33.
Kukurukurirana:
Shandisa mutemo waSnell kugadzirisa dambudziko iri:
\[
1.0 \cdot \sin(30^\circ) = 1.33 \cdot \sin(\theta_2)
\]
\[
0.5 = 1.33 \cdot \sin(\theta_2)
\]
\[
\sin(\theta_2) = \dfrac{0.5}{1.33} \inenge 0.375
\]
\[
\theta_2 = \chivi^{-1}(0.375) \inenge 22^\denderedzwa
\]
Saka, kona yekurefraction mumvura inenge 22°.
Mubvunzo 3: Kupatsanurana kwemvura
Mwenje usina polarized unonangidzirwa mumvura ine refractive index ye1,5. Sarudza kona iyo chiedza chakapolarized zvakakwana (Brewster's angle).
Kukurukurirana:
Brewster angle (\( \theta_B \)) iripo kana:
\[
\tan(\theta_B) = n
\]
\[
\tan(\theta_B) = 1.5
\]
\[
\theta_B = \tan^{-1}(1.5) \inenge 56.3^\circ
\]
Saka, kona yeBrewster yemvura inenge 56.3°.
Mhedziso
Kunzwisisa pfungwa huru dzechiedza nemafungu aro kunotibvumira kugadzirisa matambudziko akasiyana-siyana ane chekuita nechiedza mumamiriro ezvinhu anoshanda. Sezvakakurukurwa, pfungwa dzakadai sekupindira, kudzorwa, uye kupatsanurana kwemasero zvese zvine basa rakakosha mukushandiswa kwetekinoroji yemazuva ano, kusanganisira optics nekutaurirana. Kudzidza kwakakwana uye kunzwisisa mafungu echiedza kwakakosha kwete kune vesainzi chete asiwo kune chero ani zvake anofarira tekinoroji uye fizikisi iri pasi. Nekushandisa ruzivo urwu, tinogona kugadzirisa matambudziko ekuvandudzwa kwetekinoroji mune ramangwana.
