The absorption coefficient of silicon decreases from 1.65×10^6 cm^–1 at 0.3 micrometer wavelength, to 4400 cm^-1 at 0.6 micrometer and 3.5 cm^–1 at 1.1 micrometer. assuming zero reflection from both front and rear surfaces at each wavelength, calculate and sketch the generation rate of electron-hole pairs, normalised to the surface generation rate, across a silicon cell of 300 micrometer thickness.