The green line observed in the line spectrum for hydrogen has a wavelength of 486 nm. What is the energy of a photon of this light? A)9.66 × 10^-23 J B)4.09 × 10^-28 J C)4.09 × 10^-19 J D)2.44 × 10¹⁸ J E)2.44 × 10²⁷ 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 = (6.626 x 10^-34 J s)(2.998 x 10^8 m/s)/(486 x 10^-9 m)
E = 4.09 x 10^-19 J
Therefore, choice C is the correct answer.

The Green Line Observed in the Line Spectrum for Hydrogen