Question

Radio waves travel at 3.00 · 108 m/s. Calculate the wavelength of a radio wave of frequency 600 kHz. (6.00 · 105 Hz).

1.80 x 1014

5.56 x 10-15

2.00 x 10-3

5.00 x 102

Answer 1

Hmm, I got that the wavelength is 500 meters.

Answer 2

Answer:

Wavelength of the radio wave is 500 m.

Explanation:

It is given that,

Speed of radio waves, $v=3\times 10^8\ m/s$

Frequency of the wave, $f=600\ kHz=600\times 10^3\ Hz=6\times 10^5\ Hz$

We have to find the wavelength of the radio waves. The wavelength of a wave is given by :

$\lambda=\dfrac{v}{f}$

$\lambda=\dfrac{3\times 10^8\ m/s}{6\times 10^5\ Hz}$

$\lambda=500\ m$

or

$\lambda=5\times 10^2\ m$

So, the correct option is (d). Hence, this is the required solution.