A microwave oven operates at 2.70 GHz. What is the wavelength of the radiation produced by this appliance? express answer in nanometers

Wavelength is simply equal to the Speed of Light divided by the Frequency; L = c / f

where c = 299,792,458 m/s therefore

L = (299,792,458 m/s) / (2.70E9 Hz)

= 0.1110 meters

= 111.0342 millimeters

= 111,034.2 micrometers

= 111,034,200 nanometers