A particular radio station broadcasts at a frequency of 1120 kHz (kilohertz). Another radio station broadcast at a frequency of 98.7 MHz (Megahertz). What are the wavelength of the radiations from each station ?

A particular radio station broadcasts at a frequency of 1120 kHz (kilo

1.	A particular radio station broadcasts at a frequency of 1120 kHz (kilohertz). Another radio station broadcast at a frequency of 98.7 MHz (Megahertz). What are the wavelength of the radiations from each station ?
Answer» Solution :In 2st case, `V = 1120 kHz = 1120 xx 10^(3)` CYCLES `s^(-1)` (1 kHz = `10^(3)` CYCLE `s^(-1)`) `lamda = (c)/(v) = (3 xx 10^(8) ms^(-1))/(1120 xx 10^(3) s^(-1)) = 267.85 m` In 2ND case, `v = 98.7 MHz = 98.7 xx 10^(6) " cycles " s^(-1) (1 MHz = 10^(6) " cycles " s^(-1))`