Dolžina valov in pogostnost kalkulatorja
Pretvori valovno dolžino ↔ frekvenco, pridobi fotonsko energijo in pas spektra.
Rezultati posodabljajo, ko tipkate.
O tem kalkulatorju
Every wave obeys the same simple relationship: its speed equals its wavelength times its frequency, so wavelength λ = c / f and frequency f = c / λ. For electromagnetic waves in a vacuum the speed is the speed of light, c = 299,792,458 m/s (about 3 × 10⁸ m/s). Because that product is fixed, wavelength and frequency are inversely related — higher frequency always means shorter wavelength. This calculator converts either way, reports the period (T = 1 / f) and the photon energy, and names the electromagnetic band the result falls in, from radio through microwave, infrared, visible light, ultraviolet, X-ray and gamma ray.
As a worked example, an FM radio station at 100 MHz (10⁸ Hz) has a wavelength of λ = 3 × 10⁸ / 10⁸ = 3 metres — which is why FM antennas are on the order of a metre long. Green light at about 5.5 × 10¹⁴ Hz has a wavelength near 545 nm, squarely in the visible band. The tool also returns each photon’s energy from E = h × f, using Planck’s constant h = 6.62607015 × 10⁻³⁴ J·s, and shows it in both joules and electron-volts.
Higher-frequency light carries more energy per photon, which is why blue and ultraviolet light can drive chemical reactions and damage skin while radio waves cannot. You can also override the wave speed under advanced options to model waves in other media — light in glass, or sound in air — where the propagation speed differs from that of light in a vacuum. These conversions are fundamental to radio and antenna design, optics, spectroscopy and understanding the electromagnetic spectrum.
Pogosta vprašanja
Kako so valovna dolžina in frekvenca povezana?
Pomožne so obratno povezane s hitrostjo valov: Δ = c / f. Večja frekvenca pomeni krajšo valovno dolžino, saj je njihov proizvod stalna hitrost svetlobe.
Kako izračunamo fotonsko energijo?
Fotonova energija je E = h × f, kjer h = 6.62607015 × 10−34 J·s. Večja frekvenca svetlobe (modra, UV) je več energije na foton kot svetloba z nižjo frekvenco.
Kakšne so elektromagnetne spektre?
Za naraščajočo frekvenco: radio (pod ~3 GHz), mikrovalovna, infrardeča, vidna svetloba (~430–770 THz), ultravijolična, rentgenska in gama žarek. Nalepke za kalkulator, v katere spada vaša frekvenca.
Lahko uporabim za zvok ali valove v drugih medijih?
Yes. Set the advanced wave-speed field to the speed in your medium — about 343 m/s for sound in air, or roughly 2 × 10⁸ m/s for light in glass — and the wavelength ↔ frequency conversion uses that speed instead of the vacuum speed of light.
Kakšno je obdobje vala?
Obdobje je čas za en celoten cikel, T = 1 / f. A 100 MHz val ima obdobje 10−8 s (10 nanosekund). Orodje poroča obdobje ob frekvenci.
Kako lahko spremenim valovno dolžino v nanometerih?
Samo vnesite ga – kalkulatorji se samodejno ponavljajo po pm, nm, μm, mm, m in km. Vidljiva svetloba teče približno 400 nm (violet) do 700 nm (rdeče), tako da 545 nm vhodne površine v zelenem delu vidnega pasu.
API – uporabi ta kalkulator iz kode
Poišči ta kalkulator kot brezplačni končni cilj JSON – ni potreben ključ. Pošljite spodnje vrednosti polja kot parametre za poizvedovanje ali JSON. Vse, kar opustite, uporablja enako privzeto. Ta stran je napolnjena z; neznani parameter je 400, nikoli ne tiho ničlo. Preberite celoten API docs →
Končna točka
GET https://calculator.free/api/v1/wavelength-frequency/curl
curl "https://calculator.free/api/v1/wavelength-frequency/?solve=wavelength&frequency=100000000&wavelength=3"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/wavelength-frequency/?" + new URLSearchParams({
"solve": "wavelength",
"frequency": "100000000",
"wavelength": "3"
}));
const data = await r.json();
console.log(data.results);Rezultati so ocene za splošne smernice, ne pa za finančne, zdravniške ali davčne nasvete.