Light- Properties Visible light comprises a small portion of the electromagnetic spectrum(光谱) Wavelength, A(nm) 10310 10 10 10 1010110310 Frequency. V(Hz) 10201018101610141012101010310510102 Gamm Ultra Radio radiation r X-ray violet Infrared Microwave wave 400 Visible spectrum 700 Hgh energy Low energyLight – Properties ➢ Visible light comprises a small portion of the electromagnetic spectrum (光谱）