A particular radio station broadcasts at a frequency of 1120 kilohertz

1.	A particular radio station broadcasts at a frequency of 1120 kilohertz. Another radio station broadcasts at a frequency of 98.7 megahertz. What are the wavelengths of the radiations from each station?
Answer» Relation between velocity (v), WAVELENGTH (λ) and frequency(f) is: λ = v/f Let the velocity be the speed of LIGHT i.e. 3×10^8m/s For RADIO station with f= 1120 kHz, λ = 3×10^8 / 1120 x 10^3 = 3/112 x 10^4 = 267.86 m For radio station with f= 98.7 MHZ, λ = 3×10^8 / 98.7 x 10^6 = 3/98.7 x 10^4 = 3.04 m So, Wavelengths of RADIATIONS are 267.86m and 3.04m respectively

A particular radio station broadcasts at a frequency of 1120 kilohertz. Another radio station broadcasts at a frequency of 98.7 megahertz. What are the wavelengths of the radiations from each station?

Answer»

Relation between velocity (v), WAVELENGTH (λ) and frequency(f) is:

λ = v/f

Let the velocity be the speed of LIGHT i.e. 3×10^8m/s

For RADIO station with f= 1120 kHz,

λ = 3×10^8 / 1120 x 10^3

= 3/112 x 10^4

= 267.86 m

For radio station with f= 98.7 MHZ,

λ = 3×10^8 / 98.7 x 10^6

= 3/98.7 x 10^4

= 3.04 m

So, Wavelengths of RADIATIONS are 267.86m and 3.04m respectively