What is the wavelength (angstroms)of a photon that has an energy of 4.38 × 10^-18 J? A)454 B)2.30 × 10⁷ C)6.89 × 10¹⁵ D)1.45 × 10^-16 E)1.31 × 10^-9

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Quizplus · Accepted Answer

The energy of a photon is given by E = hc/λ, where h is Planck's constant (6.626 × 10^-34 J·s) and c is the speed of light (3.00 × 10^8 m/s). Solving for λ gives λ = hc/E. Substituting the given energy and constants, λ = (6.626 × 10^-34 J·s)(3.00 × 10^8 m/s) / (4.38 × 10^-18 J) = 4.54 × 10^-7 m, which is 4540 angstroms.

What Is the Wavelength (Angstroms)of a Photon That Has an Energy