2. If a new light source (its energy is7.19x10^-19 J) with an intensity of 35 Wis incident on the copper surface, what is the maximum number of electrons that can be ejected from a 6.0 second pulse of light?
(A)O,
(B) 3.71x10 ¹⁶ ,
(C) 3.7lx10 ¹⁷,
(D) 3.7lx10 ¹⁸,
(E) none of above

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