A typical red laser pointer has a power output of 1.50 mW and a wavelength of 680 nm. Find how many photons per second the laser emits in units of 10¹5 photons/sec. (A) 2.31 (B) 5.13 (C) 4.97 (D) 7.49 (E) 3.78

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A typical red laser pointer has a power output of 1.50 mW and a wavelength of 680 nm.
Find how many photons per second the laser emits in units of 10¹5 photons/sec.
(A) 2.31
(B) 5.13
(C) 4.97
(D) 7.49
(E) 3.78
Transcribed Image Text:A typical red laser pointer has a power output of 1.50 mW and a wavelength of 680 nm. Find how many photons per second the laser emits in units of 10¹5 photons/sec. (A) 2.31 (B) 5.13 (C) 4.97 (D) 7.49 (E) 3.78
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