Electric field relation Ey (x, t) = Emax Cos [(1.5 × 107 m-1) x - wt] light waves pass through a slit and the first dark fringes are observed at an angle of + 27.6 ° from the center of the diffraction pattern. a) What is the frequency of the light? b) Calculate the width of the slit. c) At what angles are the other dark eaves observed?

Electric field relation Ey (x, t) = Emax Cos [(1.5 × 107 m-1) x - wt] light waves pass through a slit and the first dark fringes are observed at an angle of + 27.6 ° from the center of the diffraction pattern. a) What is the frequency of the light? b) Calculate the width of the slit. c) At what angles are the other dark eaves observed?