Properties of Photons
AP Chemistry · Flashcards · Application
AP CHEMISTRY · FLASHCARDS
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QUESTION
Find the energy of a photon with frequency
5
×
10
14
5 \times 10^{14}
5
×
1
0
14
Hz.
QUESTION
Convert energy of
1.5
×
10
−
19
1.5 \times 10^{-19}
1.5
×
1
0
−
19
J to electronvolts.
QUESTION
Calculate energy of a photon with wavelength
400
nm
400 \text{ nm}
400
nm
.
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ANSWER
E
=
4.97
×
10
−
19
J
E = 4.97 \times 10^{-19} \text{ J}
E
=
4.97
×
1
0
−
19
J
. Using
E
=
h
c
λ
E = \frac{hc}{\lambda}
E
=
λ
h
c
with
400
400
400
nm wavelength.
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