Question

The frequency,f kilohertz of a radio wave is inversely proportional to its wavelength, Ym. The frequency of a radio wave that has a wavelength of 3000m is 100 kHz. Find (i) The frequency of a radio wave that has a length of 500m (ii) The wavelength of a radio wave that has a frequency of 800kHz

Answer 1

Explanation:

The frequency of a radio wave that has a wavelength of 3000m is 100 kHz

(a) Wavelength = 500 m

We know that,

`f=(c)/(\lambda)\\\\f=(3* 10^8)/(500)\\\\f=600\ kHz`

(b) Frequency, f = 800 kHz

`\lambda=(c)/(f)\\\\\lambda=(3* 10^8)/(800* 10^3)\\\\\lambda=375\ m`

Hence, this is the required solution.