What Is the Wavelength of a Monochromatic Light Beam, Where

question 31

Multiple Choice

What is the wavelength of a monochromatic light beam, where the photon energy is 4.81 *10^-19 J? (h = 6.63 *10^-34 J.s, c = 3.00 *10⁸ m/s, and 1 nm = 10^-9 m)

• A) 354 nm
• B) 414 nm
• C) 787 nm
• D) 398 nm

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