brendaLv1

25 Sep 2023

Visible light falls into wavelength ranges of 400-700 nm, for which 

1 m=1×109 nm1 m=1×109 nm

. 

The energy and wavelength of light are related by the equation

E=hcλ�=ℎ��

where 

E�

 is energy in Joules, 

hℎ

 is Planck's constant (

6.626×10−34 J-s6.626×10−34 J-s

), 

c�

 is the speed of light (

2.998×108 m/s2.998×108 m/s

), and 

λ�

 is the wavelength in m.

If a visible light photon has a wavelength of 452.2 nm, what is the energy of the photon (in J)?