In this experiment we found the speed of light. Microwaves create standing waves. The antinodes are the "hot spots". First I got a slice of bread and I added a thick layer of margarine on top. Candace put it in the microwave for 50 seconds. We watched the margarine melt. Then I took the slice of bread out of the microwave and Candace got a ruler and measured the "hot spots". The "hot spots" were about 6cm. The wave equation is v= λf. the wavelength is 6cm. the frequency is 2450mhz which I got from my microwave label. I converted cm to meters. I did 0.06m x 2450m = 147000. the velocity is 147000m/s.
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