Please solve in Matlab and provide code

Problem (6): The transmission of light through a transparent solid can be described by the equation where I7 is the transmitted intensity, I, is the intensity of the incident beam, B is the absorption coefficient, L is the length of the transparent solid, and R is the fraction of light which is reflected at the interface. If the light is normal to the interface and the beams are transmitted through air, where n is the index of refraction for the transparent solid. Experiments measuring the intensity of light transmitted through specimens of a transparent solid of various lengths are given in the following table. The intensity of the incident beam is 5 W/m2. 0.5 4.2 1.7 3.8 4.5 2.9 6.0 2.5 L(cm 2.2 3.6 4.0 Use this data and curve fitting to determine the absorption coefficient and index of refraction of the solid. Problem (6): The transmission of light through a transparent solid can be described by the equation where I7 is the transmitted intensity, I, is the intensity of the incident beam, B is the absorption coefficient, L is the length of the transparent solid, and R is the fraction of light which is reflected at the interface. If the light is normal to the interface and the beams are transmitted through air, where n is the index of refraction for the transparent solid. Experiments measuring the intensity of light transmitted through specimens of a transparent solid of various lengths are given in the following table. The intensity of the incident beam is 5 W/m2. 0.5 4.2 1.7 3.8 4.5 2.9 6.0 2.5 L(cm 2.2 3.6 4.0 Use this data and curve fitting to determine the absorption coefficient and index of refraction of the solid