3. The energy of a photon is given by E = hf ,whe re h is the Planck constant and f is the frequency. The wavelength λ is related to the frequency by λf = c ,so E = hc/λ .S in c e h =6 . 626 × 10 − 34 J · sand c =2
This is the end of the preview. Sign up
access the rest of the document.