What is the energy of a single photon emitted by a laser emitting light at 540.0 nm? A) 3.679 × 10 ^-19 J B) 6.625 × 10 ^-34 J C) 4.312 × 10 ^-34 J D) 1.806 × 10 ^-¹⁹ J E) 5.418× 10 ^-¹⁹ J

Question

Quizplus · Accepted Answer

The energy of a photon can be calculated using the equation E = hc/λ, where h is Planck's constant (6.626 × 10^-34 J·s), c is the speed of light (3.00 × 10^8 m/s), and λ is the wavelength of the light (540.0 nm or 540.0 × 10^-9 m). Substituting these values into the equation gives E = (6.626 × 10^-34 J·s)(3.00 × 10^8 m/s) / (540.0 × 10^-9 m) = 3.679 × 10^-19 J.

What Is the Energy of a Single Photon Emitted by a Laser