Microwave ovens emit microwave energy with a wavelength of 12.2 cm. What is the energy of exactly one photon of this microwave radiation?

E = hc/wavelength.

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To calculate the energy of a single photon, you can use the formula:

E = h * c / λ

Where:
- E is the energy of the photon
- h is Planck's constant (approximately 6.626 x 10^-34 J⋅s)
- c is the speed of light (approximately 3 x 10^8 m/s)
- λ is the wavelength of the radiation in meters

To calculate the energy of a photon with a wavelength of 12.2 cm, first convert the wavelength to meters:

12.2 cm = 0.122 m

Now, substitute the values into the formula to calculate the energy of a single photon:

E = (6.626 x 10^-34 J⋅s) * (3 x 10^8 m/s) / (0.122 m)

Using a calculator, perform the multiplication and division to find the answer.