1. The problem statement, all variables and given/known data What is the frequency (in Hz) of infared radiation that has a wavelength of 160.432 micrometers? The speed of light is 3.00 x 108 m/s. 2. Relevant equations Speed of light = wavelength x frequency Speed of light = 3.00 x 10^8 m/s 3. The attempt at a solution I know that the speed of light is equal to wavelength multiplied by frequency and that this question is basically just plug and chug. But I keep getting the wrong answer. What I did is I converted 160.432 micrometers into meters, which is 1.60432 x 10-4. Then I divided 3 x 108 (m/s) by 1.60432 x 10-4 (m). I get the value of 1.86995 x 1012. I convert this value to nanometers: 1.86 x 1021. This is the wrong answer! What did I do wrong?