An astronomer is calibrating a spectrometer that uses a dittraction grating to separate light in order ot increasing wavelength (2,, 1e, and 1). She observes three distinct tirst-orderspectral lines at the following respective angles 0, (where m denotes order).8, = 12.7°, 8, = 14.2°, 0, = 14.9c(a) If the grating has 3,680 qrooves per centimeter, what wavelength (in nm) describes each of these spectral lines?at 8, - 12.70nmat 6, = 14.2°nmal 8, = 14.9°d =(b) At what angle (in degrees) would each of these lines be found in the second-order spectrum?for 2,0, -for å, 0,for 2.8, =

An astronomer is calibrating a spectrometer that uses a dittraction grating to separate light in order of increasing wavelength (A, er and 1). She observes three distinct iirst-order spectral lines at the following respective angles @m (where m denotes order). 8, = 12.70, 8, = 14.2°, 0, = 14.9a (a) If the grating has 3,680 qrooves per centimeter, what wavelength (in nm) describes each of these spectral lines? at 8, - 12.70 24 - nm at 8, = 14.20 nm al 8, = 14.9° (b) At what angle (in degrees) would each of these lines be found in the second-order spectrum? for 2, for å 82 for 2. 82 =

An astronomer is calibrating a spectrometer that uses a dittraction grating to separate light in order of increasing wavelength (A, er and 1). She observes three distinct iirst-order spectral lines at the following respective angles @m (where m denotes order). 8, = 12.70, 8, = 14.2°, 0, = 14.9a (a) If the grating has 3,680 qrooves per centimeter, what wavelength (in nm) describes each of these spectral lines? at 8, - 12.70 24 - nm at 8, = 14.20 nm al 8, = 14.9° (b) At what angle (in degrees) would each of these lines be found in the second-order spectrum? for 2, for å 82 for 2. 82 =