What is the average power output of the laser

Reference no: EM13502318

A laser produces a cylindrical beam of light of wavelength 400nm. The average energy in a 2m length of the beam is 5*10^-8J. The cross sectional area of the beam is 4*10^-6.

a) What is the rms value of the electric field in the light?

b) what is the intensity of the beam?

c) What is the average power output of the laser?

Reference no: EM13502318

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