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# Choose the correct answer: What is the energy (E, in J) of the photons emitted by...

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What is the energy (E, in J) of the photons emitted by an Ar+ laser with a wavelength of l = 488 nm?

 a. 2.46 x 1018 J b. 2.46 x 10–18 J c. 9.69 x 10–23 J d. 4.07 x 10–19 J e. 1.36 x 10–36 J

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