Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. The energy of one photon of this light is __________ J. A)1.04 × 10^-31 B)3.79 × 10^-28 C)3.79 × 10^-19 D)1.04 × 10^-22 E)2.64 × 10¹⁸

Question

Quizplus · Accepted Answer

We can use the formula 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) x (3 x 10^8 m/s) / (525 x 10^-9 m) 
E = 3.79 x 10^-19 J 
Therefore, the energy of one photon of this light is 3.79 x 10^-19 J, which corresponds to choice C.

Electromagnetic Radiation with a Wavelength of 525 Nm Appears as Green