20. A radio station transmits radio signals with a frequency range from 3.0 MHz to 6.0 MHz The maximum wavelength of the radio signal transmitted is: A 0.01 m B 0.02 m C 50 m D 100 m E 113 m.

## Step 1:We are given the frequency range of the radio signals, from to . We need to find the maximum wavelength, which corresponds to the minimum frequency. The speed of light is constant and equals . We can use the formula for the speed of light:### ## Step 2:Rearrange the formula to solve for the wavelength :### ## Step 3:Substitute the minimum frequency into the formula:### ## Step 4:Calculate the value to find the maximum wavelength:###