A sodium lamp emits yellow light with a wavelength of 589 nm. What is the energy of a single photon in this light?

  • (A) 3.37 x 10-19 Joules
  • (B) 1.12 x 10-25 Joules
  • (C) 1.17 x 10-33 Joules
  • (D) 5.09 x 1015 Joules;
Correct Answer: A

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