An ultraviolet source produces a monochromatic beam of 200-nm light. A shutter allows a pulse to pass that is 10,000 wavelengths long. The uncertainty in the energy of a photon in this pulse is closest to which of the following? ( = 1.055 × 10-34 J ∙ s = 6.59 × 10-16 eV ∙ s, c = 3.00 × 108 m/s)
A) 5 × 10-7 eV
B) 5 × 10-6 eV
C) 5 × 10-5 eV
D) 5 × 10-4 eV
E) 5 × 10-3 eV
Correct Answer:
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