College Physics 10th Edition by Raymond Serway,Chris Vuille

Exercise 67

(a) Calculate the wavelength of light in vacuum that has a frequency of 5.45 × 10 14 Hz. (b) What is its wavelength in benzene (c) Calculate the energy of one photon of such light in vacuum. Express the answer in electron volts. (d) Does the energy of the photon change when it enters the benzene Explain.