Question

What is the wavelength, in metres, of a 28.27 GHz radar signal?

Answer 1

Answer:

Wavelength of the radar signal is 0.0106 meters.

Explanation:

It is given that,

Frequency of the radar signal, $f=28.27\ GHz=28.27\times 10^9\ Hz$

We need to find the wavelength of the radar signal. The relation between frequency and the wavelength is given by :

$\lambda=\dfrac{c}{f}$  

c is the speed of light

$\lambda=\dfrac{3\times 10^8\ m/s}{28.27\times 10^9\ Hz}$  

$\lambda=0.0106\ m$

So, the wavelength of the radar signal is 0.0106 meters. Hence, this is the required solution.

Answer 2

Answer:

0.0106 m

Explanation:

We have given that the frequency of the radar signal is $f=28.27GHz=28.27\times 10^9Hz$

Velocity of light $c=3\times 10^8m/sec$

We know that velocity = wavelength ×frequency

So $3\times 10^8=wavelength\times 28.27\times 10^9$

$wavelength=\frac{3\times 10^8}{28.27\times 10^9}=0.0106m$

So wavelength of the radar signal will be 0.0106 m