Multiple Choice
A helium-neon laser emits red light having a wavelength of 632.8 nm and a power of 1.85 mW.How many photons are emitted each second? (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s,and 1 nm = 10−9 m)
A) 5.9E+15
B) 3.7E+34
C) 5.9E+24
D) 5.9E+18
E) 1.2E+17
Correct Answer:
Verified
Correct Answer:
Verified
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