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Multiple Choice
How many photons of light are emitted in a 4.50-mJ pulse of a laser with a wavelength of 555 nm?
A
3.58 × 10−16
B
3.58 × 10−19
C
1.26 × 1016
D
2.16 × 105
E
1.26 × 1028
1:51m
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