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Calculate the force of a 1kW CO2 laser beam

Calculate the force of a 1kW CO2 laser beam

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Answer #1

Power=Energy / time

CO2 laser works at a particular wavelength

The momentum is twice the incoming photon because it bounces back (let us say)

so change in the momentum is twice the momentum because of the reflection.

in each second there are n number of photons which hit the surface to impinge force

rate of change of momentum is the forece

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