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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Quizplus · Accepted Answer

The wavelength λ can be calculated using the formula E = hc/λ. Solving for λ 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