Question

The frequency of Radio City is 91.1Hz, the speed of wave is 3 X 10³ m/s. Find its wavelength.

Answer 1

Given frequency = 91.1 Hz
                     c = 3 X 10³ ( speed of wave )
c = frequency X wavelength
  so wavelength = c / frequency
                           = ( 3 X 10³ ) / 91.1
                           =32.967 m

Answer 2

given frequency =91.1 Hz
velocity of wave c=3 x 10³
we know that 
wavelenght= c/frequency
                =3 x 10³/91.1
                =32.930 m ans...