A green laser beam with a wavelength l = 532 nm has an energy of 3.85 x 10–3 J per pulse. What is the energy per photon?
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A green laser beam with a wavelength l = 532 nm has an energy of 3.85 x 10–3 J per pulse. What is the energy per photon? (h = 6.63 x 10–34J.s; c = 3.00 x 108 m/s; 1 nm = 10–9 m)
(A) 3.85 x 10–3 J
(B) 3.74 x 10–37 J
(C) 3.74 x 10–28 J
(D) 3.74 x 10–19 J
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