He-Ne lasers are often used in physics demonstrations. They produce light of wavelength 633nm and a power of 0.650mW spread over a cylindrical beam 1.35mm in diameter (although these quantities can vary).
Part A What is the intensity of this laser beam?
I=___________W/m^2
Part B What is the maximum value of the electric field?
Emax=__________V/m
Part C What is the maximum value of the magnetic field?
Bmax=__________uT
Part D What is the average energy density in the laser beam?
Uav=____________J/m^3