A pigment absorbs a photon only if the energy of the
photon is
a. exactly enough to boost an electron of the
pigment to a higher energy level.
b. slightly more than the energy of the electron
absorbing the photon.
c. significantly more than the energy of the
electron absorbing the photon.
d. exactly twice the energy of the electron
absorbing the photon.
e. any of these, depending on the type of pigment.
Answer: a
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