Answer Happy

ASK YOUR TEACHER PRACTICE ANOTHER An optical engineer is calibrating a spectrometer that uses a diffraction grating to separate light in order of increasing wavelength and c. She observes three distinct first-order spectral lines at the following respective angles (wherem denotes order) 0 - 12.6*, 0, -13.990,- 15.15 (a) If the grating has 3,300 grooves per centimeter, what wavelength (in nm) describes each of these spectral lines? at 0, - 12.00 PA im at - 139 do- nm 0 - 15:10 - m (b) At what angle (in degrees) would each of these fines be found in the second-order spectrum 0- for Ад fordo for & 02