Light with a wavelength of 614.5 nm looks orange. What is the energy, in Joules, per photon of this orange light?
To calculate the energy per photon of light with a wavelength of 614.5 nm, we can use the equation:
E = hc/λ
Where:
E = energy per photon
h = Planck's constant (6.626 x 10^-34 J s)
c = speed of light in vacuum (3.00 x 10^8 m/s)
λ = wavelength of light (614.5 nm = 614.5 x 10^-9 m)
Plugging in the values:
E = (6.626 x 10^-34 J s * 3.00 x 10^8 m/s) / (614.5 x 10^-9 m)
E = (1.9878 x 10^-25 J m) / (6.145 x 10^-7 m)
E = 3.240 x 10^-19 J
Therefore, the energy per photon of orange light with a wavelength of 614.5 nm is approximately 3.240 x 10^-19 Joules.