Question

A radio station has a frequency of 101.9 mega hertz. What is the wavelength in meters of the waves the ones from its radio tower.

Answer 1

Answer:

2.944 m

Explanation:

Frequency of radio waves, f = 101.9 mega Hertz

Convert the mega Hertz into Hertz

As we know that 1 mega Hertz = 10^6 Hz

f = 101.9 x 10^6 Hz

As the radio waves are electromagnetic waves, so the speed of radio waves is equal to the speed of light in vacuum.

v = c = 3 x 10^8 m/s

The relation between the frequency and wavelength is given by

v = f x λ

where, λ be the wavelength

$\lambda =\frac{v}{f}=\frac{3\times10^{8}}{101.9\times10^6}$

λ = 2.944 m