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

Question

Quizplus · Accepted Answer

The wavelength λ can be calculated using the formula E = hc/λ. Rearranging gives λ = hc/E. Substituting the given values: λ = (6.63 × 10^-34 J⋅s * 3.00 × 10^8 m/s) / (4.81 × 10^-19 J) = 414 nm.

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