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

question 36

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