a radio can true to any station in 7.5 MHz to 12 MHz band. what is the corresponding wavelength band?
λ = c/f
c= 3x 108 m/s
f1 = 7.5 MHz
Thus, λ1 = (3x 108) / (7.5x 106)
= 40m
f2= 12MHz
Thus, λ2 = (3x 108) / (12x 106)
= 25m
so the range of wavelength band would be 25m to 400m.