Angular dispersion is given as, \\\\(\\alpha = \\left( {{\\mu _V} - {\\mu _R}} \\right)A\\\\) \\\\(\\alpha = \\left( {1.54 - 1.52} \\right) \ imes 100\\\\) \\\\(\\alpha = 0.02 \ imes 100\\\\) \\\\(\\alpha = 2\\\\) Thus, angular dispersion is \\\\(2\\;^\\circ \\\\).