Waves & Optics · Interactive Lab
Drag across the spectrum — from kilometre-long radio waves to gamma rays smaller than an atom — and watch the band, wavelength, frequency and photon energy update live. In a vacuum every band travels at the same speed, c.
Boundaries between bands are approximate and overlap; the scale is logarithmic. Slide all the way to either end to see how frequency and photon energy stay finite even at the extremes.