What Is the Wavelength of a Monochromatic Light Beam,where the Photon

question 77

Multiple Choice

What is the wavelength of a monochromatic light beam,where the photon energy is 5.00 x 10^-19 J? (h = 6.63 x 10^-34 J*s,c = 3.00 x 10⁸ m/s,and 1 nm = 10^-9 m)

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

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