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 density of the laser expressed in term number of photon per pulse?        (Planck constant, h = 6.63 x 10–34J.s; speed of light, c = 3.00 x 108 m/s;  1 nm = 10–9 m)           (A) 5.81 x 1024           (B) 1.03 x 1025                  (C) 1.03 x 1016                 (D) 2.67 x 1015

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A: Dear student I have given answer to your question in the image format.

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