What is the energy, in eV, of (a) a 450 MHz radio-frequency photon, (b) a visible-light photon with a wavelength of 450 nm, and (c) an x-ray photon with a wavelength of 0.045 nm?
a) Energy is equal to .
b) Energy is equal to 2.76 eV.
c) Energy is equal to 27.6 keV.
We need to find out the energy of the given photons.
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