9. Quantum Mechanics
The Energy of Light
Multiple Choice
Multiple ChoiceA light ray has a wavelength that is 835 µm contains 6.32 x 10-3 J of energy. How many photons does this light ray have?
A
7.98 x 1018 photons
B
4.85 x 1019 photons
C
9.48 x 1018 photons
D
2.65 x 1019 photons
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