The amplitude modulated (AM) radio wave bends appreciably round the corners of a 1 m x 1 m board but the frequency modulated (FM) wave only negligibly bends. If the average wavelengths of AM and FM waves are λ and λf,
(a) λa >λf
(b) λa =λf
(c) λa < λf
(d) we don't have sufficient information to decide about the relation of λa and λf,
