What Is the Energy (E, in J) of the Photons

question 50

Multiple Choice

What is the energy (E, in J) of the photons emitted by an Ar^ laser with a wavelength of   488 nm?

• A)2.46 J
• B)9.69 J
• C)1.36 J
• D)4.07 J
• E)2.46 J

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