A cook uses a microwave oven to heat a meal. The radiation wavelength is 9.25 cm. What is the energy of one photon of this microwave radiation?
Given:
"\\lambda=\\rm 9.25\\: cm=9.25*10^{-2}\\: m"
The energy of one photon of this microwave radiation
"E=\\frac{hc}{\\lambda}\\\\\n=\\rm \\frac{6.63*10^{-34}\\: J\\cdot s*3*10^8\\: m\/s}{9.25*10^{-2}\\: m}=2.15*10^{-24}\\: J"
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