What is the energy in joules of the 434 nm spectral line of hydrogen? A)1.53 × 10^-27J B)4.58 × 10^-28J C)1.04 × 10⁴⁸J D)4.58 × 10^-19J E)9.59 × 10^-⁴⁹J

Question

Quizplus · Accepted Answer

The energy of a photon is given by E=hc/λ, where h is Planck's constant, c is the speed of light, and λ is the wavelength of the photon. Plugging in the values for the 434 nm spectral line of hydrogen, we get E=(6.626x10^-34 J*s)(2.998x10^8 m/s)/(434x10^-9 m)=4.58x10^-19 J. Therefore, the correct choice is D.

What Is the Energy in Joules of the 434 Nm