The length of an extended p-system of a linear organic molecule is

10.70 . Use the 1-dimensional box model for a confined electron in this system

and determine the wavelength of light emitted by this molecule for the electronic

transition from n = 2 to n = 1. Explain your calculations.

Data: Planck constant = 6.63x10^-34 J s; Electron mass = 9.10x10^-31 kg

Speed of light = 3.00x10⁸ m s^-1; 1 Joule = 1 kg m² s^-2