A microwave oven heats by radiating food with microwave radiation, which is absorbed by the food and converted to heat. Suppose an oven’s radiation wavelength is 12.5 cm. A container with 0.250 L of water was placed in the oven, and the temperature of the water rose from 20.0oC to 100.0oC. How many photons of this microwave radiation were required? Assume that all the energy from the radiation was used to raise the temperature of the water.