🌈 Electromagnetic Optics & Quantum Physics
Wavelength, Frequency & Photon Energy Calculator
Convert seamlessly between electromagnetic wavelength ($\lambda$), frequency ($f$), and photon energy ($E = hf$) with live EM spectrum band detection.
📻 FM Radio (100 MHz)
📶 2.4 GHz Wi-Fi
🔴 Red Light (650 nm)
🟢 Green Light (532 nm)
🟣 Violet Light (405 nm)
☢️ Medical X-Ray (0.1 nm)
Electromagnetic Wave Input
EM Spectrum Classification
Visible Light (Green)
Frequency (THz)
563.89 THz
Wavelength (nm)
532.00 nm
Wave Number ($\bar{\nu}$)
18,797 cm⁻¹
💡 Quantum Planck-Einstein Relation:
$$E = h \cdot f = (6.626 \times 10^{-34}\text{ J}\cdot\text{s}) \times (563.89\text{ THz}) = 2.33\text{ eV}$$
The Electromagnetic Wave Spectrum
All electromagnetic waves travel at the speed of light in vacuum ($c \approx 2.9979 \times 10^8\text{ m/s}$):
- Radio & Microwave: $\lambda > 1\text{ mm}$ ($f < 300\text{ GHz}$) - Telecommunications and radar.
- Infrared: $700\text{ nm} < \lambda < 1\text{ mm}$ - Thermal radiation and fiber optics.
- Visible Light: $380\text{ nm} - 700\text{ nm}$ - Human optical perception.
- Ultraviolet, X-Ray, Gamma: $\lambda < 380\text{ nm}$ - High-energy ionizing radiation.