Physics Lab

EM WAVE

Interactive electromagnetic wave propagation visualization. Explore electric and magnetic fields, polarization modes, and the Poynting vector.

Electromagnetic Spectrum 470 nm (Green)

Radio Micro IR Visible UV X-ray Gamma

Wavelength (nm)

470 nm

Amplitude E₀ (V/m)

50 V/m

Animation Speed

1.0x

View Rotation

20°

Polarization

Display

Wavelength (λ)

470

Frequency (f)

6.38

×10¹⁴ Hz

Period (T)

1.57

×10⁻¹⁵ s

E₀

V/m

B₀ (E₀/c)

1.67

×10⁻⁷ T

Photon Energy

2.64

Physics Fundamentals

E(x,t) = E₀ · sin(kx - ωt)

B(x,t) = B₀ · sin(kx - ωt) = (E₀/c) · sin(kx - ωt)

Poynting Vector: S = E × B / μ₀

Photon Energy: E = h·f = ℏ·ω

The electric field (red) and magnetic field (blue) oscillate perpendicular to each other and to the direction of propagation (x-axis). The wave travels at the speed of light c = 1/√(μ₀ε₀) ≈ 3×10⁸ m/s. The Poynting vector (yellow) shows the direction and intensity of energy flow.