Solution: λ = c / f = (3 x 10^8 m/s) / (2.45 x 10^9 Hz) = 0.122 m

where λ is the wavelength, c is the speed of light (approximately 3 x 10^8 m/s), and f is the frequency.

A microwave oven uses a frequency of 2.45 GHz to heat food. What is the wavelength of this radiation?

Using the same formula as before:

Solution: λ = c / f = (3 x 10^8 m/s) / (100 x 10^6 Hz) = 3 m