We have to calculate the energy of one photon in a microwave radiation of wavelength 12.2 cm.
Microwaves are a part of the electromagnetic spectrum.
The relation between the speed, wavelength and frequency of electromagnetic waves is:
We can rearrange this equation to isolate frequency (ν).
The energy of a photon of electromagnetic radiation is given by:
We can replace the frequency (ν) in this equation:
h = Planck’s constant = 6.626x10-34 J·s.
c = speed of light = 3.0x108 m/s
Microwave ovens emit microwave energy with a wavelength of 12.2 cm. What is the energy of exactly one photon of this microwave radiation?
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