Infrared spectra are employed by chemists to help to recognize the unknown substance. Atoms in the molecule which are bound altogether by a specific bond vibrate at a predictable frequency, and light at that frequency is absorbed strongly through the atom. In case of the C=O double bond, for illustration, the oxygen atom is bound to the carbon by a bond which consists of an effective spring constant of 2800 N/m. If we suppose that the carbon atom remains stationary (it is joined to other atoms in the molecule), find out the resonant frequency of this bond and the wavelength of light which matches that frequency. (The mass of oxygen atom is 2.66 x 10-26 kg.)