We are asked to determine the energy of a photon of light with a wavelength of 575 nm.

Recall that for the energy of a photon of light, we use the following equation:

$\overline{){\mathbf{\u2206}}{\mathbf{E}}{\mathbf{}}{\mathbf{=}}{\mathbf{}}{\mathbf{h}}{\mathbf{\xb7}}{\mathbf{\nu}}}$

Where:

*ΔE** = Energy change*

*h** = Plank's Constant = 6.626x10 ^{-34} J•s*

*v** = frequency*

What is the energy of a photon of light with a wavelength of 575 nm?