A monochromatic yellow light of wavelength from a sodium lamp is used in a laboratory…
PHYSICS · Subjective · A Level · Physics · Particles and radiation · Particles and radiation
Problem
A monochromatic yellow light of wavelength 589nm from a sodium lamp is used in a laboratory experiment.
(i) Calculate the energy of a single photon of this light.
(ii) Determine the total energy contained in one mole of these photons.
(iii) How many such photons together carry 1.00J of energy?