Question

What is the wavelength of microwaves of 3.0x10^9 hz?

Answer 1

For an electromagnetic wave, the basic relationship between frequency, wavelength and speed of the wave (which is the speed of light) is

`\lambda= (c)/(f)`
where
c is the speed of light
f is the frequency of the wave

`\lambda` is the wavelength

Plugging the numbers given by the problem into the equation, we find the wavelength:

`\lambda= (c)/(f)= (3 \cdot 10^8 m/s)/(3.0 \cdot 10^9 Hz)=0.1 m`