Determine the energy of a photon that has a wavelength of 714 nm. The speed of light is 3.00 × 10⁸ m/s and h = 6.63 × 10^-34 J s. A) 1.58 × 10^-48 J B) 1.42 × 10^-31 J C) 1.42 × 10^-22 J D) 6.34 × 10^-21 J E) 2.79 × 10^-19 J

Question

Quizplus · Accepted Answer

We can use the equation E= hc/λ, where h is Planck's constant, c is the speed of light, and λ is the wavelength. Plugging in the given values, we get:

E = (6.63 × 10^-34 J s)(3.00 × 10^8 m/s)/(714 × 10^-9 m)
E = 2.79 × 10^-19 J

Therefore, the answer is E: 2.79 × 10^-19 J.

Determine the Energy of a Photon That Has a Wavelength