And a microwave oven comes with an indication in the back that shows the frequency. Youll find your ovens frequency on a label affixed to the backside or inside the door. Take the turntable out of the microwave.
Now since the speed of light is equal to the wavelength times the frequency we can figure out the speed of light.
A classic science experiment demonstrating how to use your microwave and a bar of chocolate to measure the speed of light is making the rounds with easy-to-follow instructions for replicating the. The measurement you do in the microwave oven is a real-world measurement ie. Apparently most microwaves operate at 245 gigahertz or 2450000000 Hz. Heat the chocolate.