The amplitude modulated (AM) radio wave bends apreciably round the cornes of a `1mxx1m` board but the frequency modulated `(FM)` wave only negligible bends.If the average wavelengths of AMandFM waves are `lamda_0 and lamda_f`.
A. `lambda_(a)gt lambda_(r)`
B. `lambda_(a)= lambda_(r)`
C. `lambda_(a)lt lambda_(r)`
D. we do not have sufficient information to decide about the relation of `lambda_(a)` and `lambda_(r)`
