At 25 C a microwave delivers the 750 watts of power to a coffee cup which is having 50 g of water. If the wave -length of microwaves in the oven is 9.75 cm, discuss how long does it take and determine the numbers of photons must be absorbed to make the water boil? Suppose only the water absorbs the energy of the microwaves and the specific heat capacity of water is 4.18 J/C.