Multiple Choice
For what wavelength does a 100-mW laser beam deliver 1.6 × 1017 photons in one second? (c = 3.0 × 108 m/s,h = 6.626 × 10-34 J ∙ s)
A) 320 nm
B) 330 nm
C) 340 nm
D) 350 nm
Correct Answer:

Verified
Correct Answer:
Verified
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