How many Joules of energy are there in one photon of yellow light whose wavelength is 630 nanometers?
How many Joules of energy are there in one photon of yellow light whose wavelength is 630 nanometers?
W=c/v, c=speed of light, v=frequency
6.3 X 10^-7=3 X 10^8/v
v=3 X 10^8 / 6.3 X 10^-7
v=4.76 X 10^14 Hz-frequency of the yellow light.
E=hv, h=Planck's constant,
E=(4.76 X 10^14)Hz X 6.62607×10^-34 J s
E=3.15401×10^-19 Joules- the energy of a single photon of yellow light.
