111. Solving a chemistry problem

Light with a wavelength of 540 nm and initial intensity I0 passes through a layer of emulsion of tetralin in water with a thickness of a) 5 cm; b) 10 cm c) 15 cm d) 20 cm Calculate the fraction of transmitted light In/I0 and plot its dependence on the radius of the particles of the dispersed phase, which varies from 10 to 50 nm as a result of coalescence. The content of the dispersed phase is 0.05% (mass), the refractive index of tetralin and water is n1=1.540, n0=1.333.