When laser light of wavelength 632.2 nm passes through a diffraction grating, the first bright spots occur at + 18.8° from the central maximum. Part A For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Width of a grating spectrum. What is the line density (in lines/cm) of this grating? Express your answer in lines per centimeter. ? 1/d = lines/cm Submit Request Answer Part B How many additional pairs of bright spots are there beyond the first bright spots? ? bright spots Submit Request Answer

When laser light of wavelength 632.2 nm passes through a diffraction grating, the first bright spots occur at + 18.8° from the central maximum. Part A For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Width of a grating spectrum. What is the line density (in lines/cm) of this grating? Express your answer in lines per centimeter. ? 1/d = lines/cm Submit Request Answer Part B How many additional pairs of bright spots are there beyond the first bright spots? ? bright spots Submit Request Answer