A sodium vapor lamp emits photons with a wavelength of 5.89 X 10^-7m. What is the energy of these photons?
A sodium vapor lamp emits photons with a wavelength of 5.89 X 10^-7m. What is the energy of these photons?
Wavelength=c/v, where c is the speed of light,and v is the frequency.
5.89 X 10^-7=3 X 10^8/v
v=5.09 X 10^14-frequency of the photons
E=hv, where h, is Planck's constant, v is the frequency,
E=(6.63 X 10-34) X (5.09 X 10^14)
E=3.37691 X 10^-19, Joules, the energy of Sodium vapor photons.
